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@ -2,81 +2,129 @@
## Our Pledge
We as members, contributors, and leaders pledge to make participation in our community a harassment-free experience for everyone, regardless of age, body size, visible or invisible disability, ethnicity, sex characteristics, gender identity and expression, level of experience, education, socioeconomic status, nationality, personal appearance, race, caste, color, religion, or sexual identity and orientation.
We as members, contributors, and leaders pledge to make participation in our
community a harassment-free experience for everyone, regardless of age, body
size, visible or invisible disability, ethnicity, sex characteristics, gender
identity and expression, level of experience, education, socioeconomic status,
nationality, personal appearance, race, caste, color, religion, or sexual
identity and orientation.
We pledge to act and interact in ways that contribute to an open, welcoming, diverse, inclusive, and healthy community.
We pledge to act and interact in ways that contribute to an open, welcoming,
diverse, inclusive, and healthy community.
## Our Standards
Examples of behavior that contributes to a positive environment for our community include:
Examples of behavior that contributes to a positive environment for our
community include:
- Demonstrating empathy and kindness toward other people
- Being respectful of differing opinions, viewpoints, and experiences
- Giving and gracefully accepting constructive feedback
- Accepting responsibility and apologizing to those affected by our mistakes, and learning from the experience
- Focusing on what is best not just for us as individuals, but for the overall community
- Accepting responsibility and apologizing to those affected by our mistakes,
and learning from the experience
- Focusing on what is best not just for us as individuals, but for the overall
community
Examples of unacceptable behavior include:
- The use of sexualized language or imagery, and sexual attention or advances of any kind
- The use of sexualized language or imagery, and sexual attention or advances of
any kind
- Trolling, insulting or derogatory comments, and personal or political attacks
- Public or private harassment
- Publishing others' private information, such as a physical or email address, without their explicit permission
- Other conduct which could reasonably be considered inappropriate in a professional setting
- Publishing others' private information, such as a physical or email address,
without their explicit permission
- Other conduct which could reasonably be considered inappropriate in a
professional setting
## Enforcement Responsibilities
Community leaders are responsible for clarifying and enforcing our standards of acceptable behavior and will take appropriate and fair corrective action in response to any behavior that they deem inappropriate, threatening, offensive, or harmful.
Community leaders are responsible for clarifying and enforcing our standards of
acceptable behavior and will take appropriate and fair corrective action in
response to any behavior that they deem inappropriate, threatening, offensive,
or harmful.
Community leaders have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, and will communicate reasons for moderation decisions when appropriate.
Community leaders have the right and responsibility to remove, edit, or reject
comments, commits, code, wiki edits, issues, and other contributions that are
not aligned to this Code of Conduct, and will communicate reasons for moderation
decisions when appropriate.
## Scope
This Code of Conduct applies within all community spaces, and also applies when an individual is officially representing the community in public spaces. Examples of representing our community include using an official e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event.
This Code of Conduct applies within all community spaces, and also applies when
an individual is officially representing the community in public spaces.
Examples of representing our community include using an official e-mail address,
posting via an official social media account, or acting as an appointed
representative at an online or offline event.
## Enforcement
Instances of abusive, harassing, or otherwise unacceptable behavior may be reported to the community leaders responsible for enforcement at community-reports@roboflow.com.
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported to the community leaders responsible for enforcement at
community-reports@roboflow.com.
All complaints will be reviewed and investigated promptly and fairly.
All community leaders are obligated to respect the privacy and security of the reporter of any incident.
All community leaders are obligated to respect the privacy and security of the
reporter of any incident.
## Enforcement Guidelines
Community leaders will follow these Community Impact Guidelines in determining the consequences for any action they deem in violation of this Code of Conduct:
Community leaders will follow these Community Impact Guidelines in determining
the consequences for any action they deem in violation of this Code of Conduct:
### 1. Correction
**Community Impact**: Use of inappropriate language or other behavior deemed unprofessional or unwelcome in the community.
**Community Impact**: Use of inappropriate language or other behavior deemed
unprofessional or unwelcome in the community.
**Consequence**: A private, written warning from community leaders, providing clarity around the nature of the violation and an explanation of why the behavior was inappropriate. A public apology may be requested.
**Consequence**: A private, written warning from community leaders, providing
clarity around the nature of the violation and an explanation of why the
behavior was inappropriate. A public apology may be requested.
### 2. Warning
**Community Impact**: A violation through a single incident or series of actions.
**Community Impact**: A violation through a single incident or series of
actions.
**Consequence**: A warning with consequences for continued behavior. No interaction with the people involved, including unsolicited interaction with those enforcing the Code of Conduct, for a specified period of time. This includes avoiding interactions in community spaces as well as external channels like social media. Violating these terms may lead to a temporary or permanent ban.
**Consequence**: A warning with consequences for continued behavior. No
interaction with the people involved, including unsolicited interaction with
those enforcing the Code of Conduct, for a specified period of time. This
includes avoiding interactions in community spaces as well as external channels
like social media. Violating these terms may lead to a temporary or permanent
ban.
### 3. Temporary Ban
**Community Impact**: A serious violation of community standards, including sustained inappropriate behavior.
**Community Impact**: A serious violation of community standards, including
sustained inappropriate behavior.
**Consequence**: A temporary ban from any sort of interaction or public communication with the community for a specified period of time. No public or private interaction with the people involved, including unsolicited interaction with those enforcing the Code of Conduct, is allowed during this period. Violating these terms may lead to a permanent ban.
**Consequence**: A temporary ban from any sort of interaction or public
communication with the community for a specified period of time. No public or
private interaction with the people involved, including unsolicited interaction
with those enforcing the Code of Conduct, is allowed during this period.
Violating these terms may lead to a permanent ban.
### 4. Permanent Ban
**Community Impact**: Demonstrating a pattern of violation of community standards, including sustained inappropriate behavior, harassment of an individual, or aggression toward or disparagement of classes of individuals.
**Community Impact**: Demonstrating a pattern of violation of community
standards, including sustained inappropriate behavior, harassment of an
individual, or aggression toward or disparagement of classes of individuals.
**Consequence**: A permanent ban from any sort of public interaction within the community.
**Consequence**: A permanent ban from any sort of public interaction within the
community.
## Attribution
This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 2.1, available at [https://www.contributor-covenant.org/version/2/1/code_of_conduct.html][v2.1].
This Code of Conduct is adapted from the [Contributor Covenant][homepage],
version 2.1, available at
[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html][v2.1].
Community Impact Guidelines were inspired by [Mozilla's code of conduct enforcement ladder][mozilla coc].
Community Impact Guidelines were inspired by
[Mozilla's code of conduct enforcement ladder][mozilla coc].
For answers to common questions about this code of conduct, see the FAQ at [https://www.contributor-covenant.org/faq][faq]. Translations are available at [https://www.contributor-covenant.org/translations][translations].
For answers to common questions about this code of conduct, see the FAQ at
[https://www.contributor-covenant.org/faq][faq]. Translations are available at
[https://www.contributor-covenant.org/translations][translations].
[faq]: https://www.contributor-covenant.org/faq
[homepage]: https://www.contributor-covenant.org

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@ -11,14 +11,13 @@ Please read and adhere to our [Code of Conduct](https://supervision.roboflow.com
## Table of Contents
- [Contribution Guidelines](#contribution-guidelines)
- [Contributing Features](#contributing-features)
- [API Design Principles](#api-design-principles)
- [Contributing Features](#contributing-features)
- [How to Contribute Changes](#how-to-contribute-changes)
- [Installation for Contributors](#installation-for-contributors)
- [Code Style and Quality](#code-style-and-quality)
- [Pre-commit tool](#pre-commit-tool)
- [Docstrings](#docstrings)
- [Type checking](#type-checking)
- [Pre-commit tool](#pre-commit-tool)
- [Docstrings](#docstrings)
- [Type checking](#type-checking)
- [Documentation](#documentation)
- [Cookbooks](#cookbooks)
- [Tests](#tests)
@ -42,15 +41,6 @@ For example, counting objects that cross a line anywhere on an image is a common
Before you contribute a new feature, consider submitting an Issue to discuss the feature so the community can weigh in and assist.
### API Design Principles
Supervision APIs should remain generic, composable, and predictable across model families. Before adding a new integration, annotator option, or data conversion method, check the existing `sv.Detections`, `sv.KeyPoints`, and annotator patterns and follow these principles:
1. **Model integrations normalize raw external outputs into existing Supervision containers.** Use `sv.Detections` for detection, segmentation, and other instance-level predictions that include boxes, masks, class ids, confidence scores, or extra per-instance fields. Use `sv.KeyPoints` for standalone keypoint or pose predictions when keypoints exist independently of detection boxes (e.g. pure pose estimation, landmark detection on pre-cropped images). Use `Detections.keypoints` when keypoints are always co-incident with boxes from the same model — the field stores an `(n, K, 2)` or `(n, K, 3)` array where the optional third channel is per-point confidence in `[0, 1]`.
2. **Do not add a `from_<model>` method when the model already returns a Supervision object.** `from_*` methods are for converting raw outputs from external packages such as Ultralytics, Transformers, Inference, or MediaPipe. If a model's `predict()` method already returns `sv.Detections`, keep that result type and store additional structured payloads in `detections.data` or `detections.metadata` using documented keys.
3. **Annotators render data; filtering and visibility are container state.** Filtering by confidence, class id, tracker id, geometry, or custom data should happen before annotation through the container slicing APIs, for example `detections[detections.confidence > 0.7]` or `key_points[key_points.confidence > 0.5]`. Per-point presentation state, such as a `KeyPoints.visible` mask, may live on the container and be honored consistently by annotators.
4. **Annotator constructor arguments should describe visual presentation, not model-quality gates.** Use constructor arguments for color, thickness, opacity, text, position, style, and generic visualization parameters such as sigma levels. Annotators may skip invalid geometry defensively, including missing points, zero-area boxes, non-finite coordinates, or points marked invisible on the container. They should not introduce confidence thresholds or model-specific quality gates as rendering options.
## How to Contribute Changes
First, fork this repository to your own GitHub account. Click "fork" in the top corner of the `supervision` repository to get started:
@ -142,63 +132,63 @@ Before starting your work on the project, set up your development environment:
1. **Clone your fork of the project:**
**Option A: Recommended for most contributors (shallow clone of develop branch):**
**Option A: Recommended for most contributors (shallow clone of develop branch):**
```bash
git clone --depth 1 -b develop https://github.com/YOUR_USERNAME/supervision.git
cd supervision
```
```bash
git clone --depth 1 -b develop https://github.com/YOUR_USERNAME/supervision.git
cd supervision
```
Replace `YOUR_USERNAME` with your GitHub username.
Replace `YOUR_USERNAME` with your GitHub username.
> **Note**: Using `--depth 1` creates a shallow clone with minimal history and `-b develop` ensures you start with the development branch. This significantly reduces download size while providing everything needed to contribute.
> **Note**: Using `--depth 1` creates a shallow clone with minimal history and `-b develop` ensures you start with the development branch. This significantly reduces download size while providing everything needed to contribute.
**Option B: Full repository clone (if you need complete history):**
**Option B: Full repository clone (if you need complete history):**
```bash
git clone https://github.com/YOUR_USERNAME/supervision.git
cd supervision
git checkout develop
```
```bash
git clone https://github.com/YOUR_USERNAME/supervision.git
cd supervision
git checkout develop
```
2. **Set up the upstream remote:**
```bash
git remote add upstream https://github.com/roboflow/supervision.git
git fetch upstream
```
```bash
git remote add upstream https://github.com/roboflow/supervision.git
git fetch upstream
```
3. **Create and activate a virtual environment:**
**On Linux/macOS:**
**On Linux/macOS:**
```bash
python3 -m venv .venv
source .venv/bin/activate
```
```bash
python3 -m venv .venv
source .venv/bin/activate
```
**On Windows:**
**On Windows:**
```cmd
python -m venv .venv
.venv\Scripts\activate
```
```cmd
python -m venv .venv
.venv\Scripts\activate
```
4. **Install `uv`:**
Follow the instructions on the [uv installation page](https://docs.astral.sh/uv/getting-started/installation/).
Follow the instructions on the [uv installation page](https://docs.astral.sh/uv/getting-started/installation/).
5. **Install project dependencies:**
```bash
uv pip install -r pyproject.toml --group dev --group docs --extra metrics
```
```bash
uv pip install -r pyproject.toml --group dev --group docs --extra metrics
```
6. **Verify the setup:**
```bash
uv run pytest
```
```bash
uv run pytest
```
## 🎨 Code Style and Quality
@ -212,27 +202,27 @@ To run the pre-commit tool, follow these steps:
1. **Install pre-commit** (already included if you followed the installation steps above):
```bash
uv sync --group dev
```
```bash
uv sync --group dev
```
2. **Navigate to the project's root directory** (if not already there).
3. **Run pre-commit checks**:
```bash
uv run pre-commit run --all-files
```
```bash
uv run pre-commit run --all-files
```
This will execute the pre-commit hooks configured for this project. If any issues are found, the pre-commit tool will provide feedback on how to resolve them. Make the necessary changes and re-run the command until all issues are resolved.
This will execute the pre-commit hooks configured for this project. If any issues are found, the pre-commit tool will provide feedback on how to resolve them. Make the necessary changes and re-run the command until all issues are resolved.
4. **Install pre-commit as a git hook** (optional but recommended):
```bash
uv run pre-commit install
```
```bash
uv run pre-commit install
```
This will automatically run pre-commit checks every time you make a `git commit`.
This will automatically run pre-commit checks every time you make a `git commit`.
### Docstrings
@ -240,41 +230,9 @@ All new functions and classes in `supervision` should include docstrings. This i
`supervision` adheres to the [Google Python docstring style](https://google.github.io/styleguide/pyguide.html#383-functions-and-methods). Please refer to the style guide while writing docstrings for your contribution.
Every docstring should include a usage example. When the example only uses `supervision`, NumPy, and the standard library — no optional extras, no external files or network access — strongly prefer `>>>` doctest format so it is automatically verified by the test suite. See [Doctests](#doctests) below for syntax guidance and for when fenced ```` ```python ```` blocks are appropriate instead.
### Type checking
Type hints are required on all new code. mypy is enforced by the pre-commit hook configured in `.pre-commit-config.yaml` — your PR will fail CI if mypy reports errors.
### Readability
Avoid multi-branch conditional expressions inside function or constructor arguments. If an argument needs more than a simple `a if condition else b`, assign it to a named local variable before the call.
### Performance
- Avoid unnecessary copies of NumPy arrays.
- Prefer vectorized operations over Python loops in hot paths.
- Lazy-import heavy framework dependencies (`torch`, `transformers`, `ultralytics`) inside the function that needs them — never at module top level.
### Deprecation policy
**Minimum window**: deprecated APIs must remain for at least **3 minor releases** before removal. Example: deprecated in `0.29.0` → removed in `0.32.0`.
Use the appropriate mechanism depending on what is being deprecated:
- **Module-level alias**: `supervision.utils.internal.warn_deprecated` in the deprecated module's `__init__.py`
- **Renamed parameter**: `supervision.utils.internal.deprecated_parameter` decorator
- **Public function, method, or class**: `@deprecated` from `pydeprecate`
Always specify both the deprecation version and the planned removal version in the message or decorator arguments.
### Deprecated module aliases
`supervision.keypoint` is deprecated since `0.27.0` and will be removed in `0.30.0`. Always import from `supervision.key_points`:
```python
from supervision.key_points import KeyPoints # correct
```
Currently, there is no systematic type checking with mypy implemented in the project. This is a known limitation that may be addressed in future updates.
## 📝 Documentation
@ -284,15 +242,15 @@ To run the documentation locally:
1. **Install documentation dependencies** (if not already installed):
```bash
uv sync --group docs
```
```bash
uv sync --group docs
```
2. **Start the documentation server**:
```bash
uv run mkdocs serve
```
```bash
uv run mkdocs serve
```
3. **Access the documentation** at `http://127.0.0.1:8000` in your browser.
@ -300,7 +258,9 @@ You can learn more about mkdocs on the [mkdocs website](https://www.mkdocs.org/)
## 🧑‍🍳 Cookbooks
We are always looking for new examples and cookbooks to add to the `supervision` documentation. If you have a use case that you think would be helpful to others, please submit a PR with your example. Here are some guidelines for submitting a new example:
We are always looking for new examples and cookbooks to add to the `supervision`
documentation. If you have a use case that you think would be helpful to others, please
submit a PR with your example. Here are some guidelines for submitting a new example:
- Create a new notebook in the [`docs/notebooks`](https://github.com/roboflow/supervision/tree/develop/docs/notebooks) folder.
- Add a link to the new notebook in [`docs/theme/cookbooks.html`](https://github.com/roboflow/supervision/blob/develop/docs/theme/cookbooks.html). Make sure to add the path to the new notebook, as well as a title, labels, author and supervision version.
@ -326,87 +286,6 @@ To run tests with coverage:
uv run pytest --cov=supervision
```
### Test Structure
Follow **Arrange-Act-Assert (AAA)**: one setup block, one action, one assertion group per test. Never put two independent actions in the same test.
**Class grouping:** Group related tests into a class. The class name carries the unit under test; method names describe the expected outcome only — not the mechanism.
```python
class TestDetectionsWithNms:
def test_keeps_highest_confidence_detection(self): ...
def test_suppresses_lower_score_when_overlap_exceeds_threshold(self): ...
def test_raises_when_confidence_missing(self): ...
```
**Parametrize aggressively:** Three or more structurally identical tests should become a single `@pytest.mark.parametrize` case. Use `pytest.param(..., id="slug")` per case — not `ids=[...]` on the decorator — so the ID stays co-located with its arguments and survives reordering.
```python
@pytest.mark.parametrize(
("overlap_metric", "expected_keep"),
[
pytest.param(OverlapMetric.IOU, [True, True], id="iou-keeps-both"),
pytest.param(OverlapMetric.IOS, [True, False], id="ios-suppresses-small"),
],
)
def test_overlap_metric_determines_suppression(
overlap_metric: OverlapMetric, expected_keep: list[bool]
) -> None:
"""Small box inside large: IOU keeps both; IOS suppresses small."""
...
```
**Docstrings:** Every test function/method requires at minimum a one-line docstring (within the project line length configured in `pyproject.toml`). Describe the scenario, not the implementation.
### Doctests
**Guidance:** when an example uses only `supervision`, NumPy, and the standard library — no optional extras (e.g. no `--extra metrics` packages), no external files, no network, no devices — prefer `>>>` doctest format so it is automatically verified by the test suite. Fenced ```` ```python ```` blocks are appropriate when the example cannot reasonably be executed (e.g. loading a third-party model, reading a video file) or when the primary purpose is demonstrating error/exception behaviour rather than return values.
Doctests run automatically as part of the test suite via `--doctest-modules` in `pyproject.toml`. The `ELLIPSIS` and `NORMALIZE_WHITESPACE` flags are enabled globally, so `...` matches any output fragment and minor whitespace differences are ignored.
```bash
uv run pytest --doctest-modules src/
```
**Writing a doctest**
Use the `Example:` section of a Google-style docstring. Prefix each input line with `>>>` and each continuation line with `...`. Place expected output immediately after the last input line with no blank line between them.
```python
def clip_boxes(xyxy: np.ndarray, resolution_wh: tuple) -> np.ndarray:
"""Clip bounding boxes to frame boundaries.
Args:
xyxy: Box coordinates as (N, 4) float array.
resolution_wh: Frame size as (width, height).
Returns:
Clipped boxes as (N, 4) float array.
Example:
>>> import numpy as np
>>> import supervision as sv
>>> boxes = np.array([[-10, -5, 120, 80]], dtype=np.float32)
>>> sv.clip_boxes(boxes, resolution_wh=(100, 60))
array([[ 0., 0., 100., 60.]], dtype=float32)
"""
```
### Key rules
- **Single-line expression** — write the repr as expected output: `>>> len(result)``1`
- **Multi-line statement** — use `...` continuation: `>>> arr = np.array([` / `... [1, 2],` / `... ])`
- **Print output** — write the printed string as expected output (no quotes).
- **`None` return** — no output line needed (suppress with assignment or `_ =`).
- **Large/variable arrays** — use `ELLIPSIS`: `array([...])` matches any content.
- **`# doctest: +SKIP`** — use only as a last resort for genuinely non-runnable lines (e.g. a GPU-only call inside an otherwise runnable example). Prefer splitting the example into two blocks instead.
Fenced ```` ```python ```` blocks remain appropriate for:
- Examples that import optional extras (`supervision[metrics]`, `torch`, `ultralytics`).
- Examples that read files, capture video, or require a running service.
- Illustrative pseudocode that is intentionally incomplete.
## 🔍 PR Review Guidelines
These guidelines help reviewers provide consistent, actionable feedback efficiently. Your goals: validate completeness, identify risks, provide actionable feedback, and highlight quality gaps.

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@ -2,17 +2,17 @@
This file provides context-aware guidance for GitHub Copilot when working in the Supervision repository.
______________________________________________________________________
---
## 📚 Repository Overview
**Supervision** is a Python library providing reusable computer vision utilities for working with object detection models (YOLO, SAM, etc.). It offers tools for detections processing, tracking, annotation, and dataset management.
- **Languages**: Python 3.10+
- **Languages**: Python 3.9+
- **Key Dependencies**: NumPy, OpenCV, SciPy
- **License**: MIT
______________________________________________________________________
---
## 🏗️ Project Structure
@ -30,7 +30,7 @@ supervision/
└── examples/ # Usage examples
```
______________________________________________________________________
---
## 🔧 Development Commands
@ -61,7 +61,7 @@ uv run pytest --cov=supervision
uv run mkdocs serve
```
______________________________________________________________________
---
## 💻 Code Conventions
@ -77,8 +77,8 @@ ______________________________________________________________________
- **Linting**: Enforced by `ruff-check` (pre-commit)
- **Type Hints**: Required on all new code
- **Docstrings**: Required using [Google Python style](https://google.github.io/styleguide/pyguide.html#383-functions-and-methods)
- Must include usage examples with primitive values
- Serve as runnable documentation
- Must include usage examples with primitive values
- Serve as runnable documentation
### Performance
@ -92,7 +92,7 @@ ______________________________________________________________________
- Maintain backward compatibility unless explicitly breaking
- Prefer functional utilities over complex classes
______________________________________________________________________
---
## 🧪 Testing Requirements
@ -103,7 +103,7 @@ All new features must include:
- Clear test names describing what they validate
- Proper assertions (not just "no exception raised")
______________________________________________________________________
---
## 📝 Documentation Requirements
@ -114,7 +114,7 @@ For new public functions/classes:
- Entry in appropriate `docs/*.md` file
- Reference in `mkdocs.yml` navigation
______________________________________________________________________
---
## 🔍 Pull Request Reviews
@ -129,7 +129,7 @@ Quick checklist:
- Score code quality, testing, docs (n/5 scale)
- Use inline comments + GitHub suggestion format
______________________________________________________________________
---
## 🌿 Branching & Commits
@ -137,10 +137,10 @@ ______________________________________________________________________
- Use **conventional commits**: `feat:`, `fix:`, `docs:`, `refactor:`, `perf:`, `test:`, `chore:`
- All PRs target `develop` branch
______________________________________________________________________
---
## 🎯 Context-Aware Behavior
- **For general development tasks**: Follow [AGENTS.md](../AGENTS.md)
- **For pull request reviews**: Follow [PR Review Guidelines](CONTRIBUTING.md#pr-review-guidelines)
- **For detailed processes**: Consult [CONTRIBUTING.md](CONTRIBUTING.md)
**For general development tasks**: Follow [AGENTS.md](../AGENTS.md)
**For pull request reviews**: Follow [PR Review Guidelines](CONTRIBUTING.md#pr-review-guidelines)
**For detailed processes**: Consult [CONTRIBUTING.md](CONTRIBUTING.md)

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@ -5,8 +5,6 @@ updates:
directory: "/"
schedule:
interval: "weekly"
cooldown:
default-days: 7
commit-message:
prefix: ⬆️
target-branch: "develop"
@ -19,8 +17,6 @@ updates:
directory: "/"
schedule:
interval: "weekly"
cooldown:
default-days: 7
commit-message:
prefix: ⬆️
target-branch: "develop"

12
.github/lychee.toml vendored
View File

@ -9,16 +9,9 @@ accept = [
200, # OK
408, # Request Timeout
# 429 means the server received the request and is actively rate-limiting — the URL is
# reachable. Real dead links return 404, 410, or fail to connect/resolve; none of
# those produce a 429, so accepting it here does not hide broken links.
# reachable. Real dead links return 404, 410, 5xx, or fail to connect; none of those
# produce a 429, so accepting it here does not hide broken links.
429, # Too Many Requests (rate-limited but reachable; does not mask dead links)
# CI regularly sees momentary 502/503/504 from large, healthy hosts (github.com,
# supervision.roboflow.com), and in-run retries tend to land inside the same
# incident window. Genuinely dead links surface as 404, 410, or connection/DNS
# failures, which remain rejected.
502, # Bad Gateway (transient upstream hiccup)
503, # Service Unavailable (transient overload or maintenance)
504, # Gateway Timeout (transient upstream hiccup)
]
exclude = [
@ -26,7 +19,6 @@ exclude = [
"http://127.0.0.1:8000", # hint for local docs server
"https://sam2.metademolab.com/", # returns 403 Forbidden
"https://snyk.io/advisor/python/supervision/badge.svg", # badge URL
"https://trendshift.io", # badge API times out in CI
"https://universe.roboflow.com/",
"https://universe.roboflow.com/model-examples/segmented-animals-basic",
# fixme: this page returns 401 Unauthorized when accessed and 404 Not Found when accessed with browser,

View File

@ -1,109 +0,0 @@
#!/usr/bin/env python3
"""Validate doctest prompt formatting in source docstrings."""
from __future__ import annotations
import argparse
import re
import sys
from pathlib import Path
DOCTEST_PROMPT_RE = re.compile(r"^\s*>>>")
FENCE_RE = re.compile(r"^\s*```(?P<language>[A-Za-z0-9_-]*)\s*$")
def _check_content(content: str, path: Path) -> list[str]:
r"""Return doctest fence violations for file content.
Examples:
```pycon
>>> from pathlib import Path
>>> _check_content('```pycon\n>>> len([1])\n1\n\n```\n', Path('src/a.py'))
[]
>>> _check_content('>>> len([1])\n1\n', Path('src/a.py'))
['src/a.py:1: doctest prompt must be inside a ```pycon fenced block']
>>> violations = _check_content(
... '```pycon\n>>> len([1])\n1\n```\n', Path('src/a.py')
... )
>>> violations == [
... 'src/a.py:4: pycon doctest block must include exactly one blank line '
... 'before the closing fence'
... ]
True
```
"""
violations: list[str] = []
active_fence_language: str | None = None
in_invalid_doctest_block = False
line_before_previous = ""
previous_line = ""
for line_number, line in enumerate(content.splitlines(), start=1):
fence_match = FENCE_RE.match(line)
if fence_match is not None:
in_invalid_doctest_block = False
if active_fence_language is None:
active_fence_language = fence_match.group("language")
else:
has_exactly_one_blank_line = (
previous_line.strip() == "" and line_before_previous.strip() != ""
)
if active_fence_language == "pycon" and not has_exactly_one_blank_line:
violations.append(
f"{path}:{line_number}: pycon doctest block must include "
"exactly one blank line before the closing fence"
)
active_fence_language = None
line_before_previous = previous_line
previous_line = line
continue
if not line.strip():
in_invalid_doctest_block = False
if (
DOCTEST_PROMPT_RE.match(line)
and active_fence_language != "pycon"
and not in_invalid_doctest_block
):
violations.append(
f"{path}:{line_number}: doctest prompt must be inside a "
"```pycon fenced block"
)
in_invalid_doctest_block = True
line_before_previous = previous_line
previous_line = line
return violations
def check_file(path: Path) -> list[str]:
"""Return doctest fence violations for a single source file."""
if not path.is_file() or path.suffix != ".py" or "src" not in path.parts:
return []
return _check_content(content=path.read_text(encoding="utf-8"), path=path)
def main() -> int:
"""Run the doctest fence check for pre-commit supplied files."""
parser = argparse.ArgumentParser(
description="Validate doctest prompts in src/ are fenced as pycon blocks."
)
parser.add_argument("files", nargs="*", type=Path)
args = parser.parse_args()
violations = [
violation for path in args.files for violation in check_file(path=path)
]
if violations:
print("\n".join(violations))
return 1
return 0
if __name__ == "__main__":
sys.exit(main())

View File

@ -1,125 +0,0 @@
#!/usr/bin/env python3
"""Verify a built Supervision wheel works without OpenCV."""
from __future__ import annotations
import argparse
import subprocess
import zipfile
from email import message_from_bytes
from email.message import Message
from pathlib import Path
_MANIFEST_CHECKS = {
"import-supervision",
"no-cv2-module",
"fallback-backend",
"bgr-to-gray",
"draw-rectangle",
"required-pyav",
}
def _wheel_metadata(wheel: Path) -> Message:
"""Read the core metadata embedded in a wheel archive."""
with zipfile.ZipFile(wheel) as archive:
metadata_paths = [
name for name in archive.namelist() if name.endswith("/METADATA")
]
if len(metadata_paths) != 1:
raise ValueError(
f"expected one METADATA file in {wheel}, found {metadata_paths}"
)
return message_from_bytes(archive.read(metadata_paths[0]))
def _validate_metadata(wheel: Path) -> None:
"""Reject wheels that retain an OpenCV runtime requirement or extra."""
metadata = _wheel_metadata(wheel)
requirements = metadata.get_all("Requires-Dist", [])
extras = metadata.get_all("Provides-Extra", [])
if any("opencv" in requirement.lower() for requirement in requirements):
raise ValueError(
f"OpenCV runtime requirement remains in {wheel}: {requirements}"
)
if any("opencv" in extra.lower() for extra in extras):
raise ValueError(f"OpenCV extra remains in {wheel}: {extras}")
def _validate_manifest(manifest: Path) -> None:
"""Keep the installed-wheel fallback smoke contract explicit and complete."""
checks = {
s
for line in manifest.read_text(encoding="utf-8").splitlines()
if (s := line.strip()) and not s.startswith("#")
}
if checks != _MANIFEST_CHECKS:
raise ValueError(
f"unexpected fallback manifest {checks}; expected {_MANIFEST_CHECKS}"
)
def _run_installed_wheel_probe(python: Path) -> None:
"""Exercise the installed fallback without allowing the source tree on sys.path."""
source = """
import importlib.util
from importlib import metadata
from pathlib import Path
import av
import numpy as np
import supervision
from supervision import _cv2
package_path = Path(supervision.__file__).resolve()
if "site-packages" not in package_path.parts:
raise AssertionError(
f"supervision did not import from site-packages: {package_path}"
)
if importlib.util.find_spec("cv2") is not None:
raise AssertionError("cv2 is installed in the clean-wheel environment")
opencv_distributions = [
distribution.metadata["Name"]
for distribution in metadata.distributions()
if "opencv" in distribution.metadata["Name"].lower()
]
if opencv_distributions:
raise AssertionError(
"OpenCV distributions remain in the clean-wheel environment: "
f"{opencv_distributions}"
)
if _cv2.BACKEND_NAME != "fallback":
raise AssertionError(f"expected fallback backend, got {_cv2.BACKEND_NAME!r}")
image = np.array([[[0, 0, 255]]], dtype=np.uint8)
assert _cv2.cvtColor(image, _cv2.COLOR_BGR2GRAY).tolist() == [[76]]
canvas = np.zeros((3, 3, 3), dtype=np.uint8)
assert _cv2.rectangle(canvas, (0, 0), (2, 2), (1, 2, 3), -1) is canvas
assert canvas.tolist() == [[[1, 2, 3]] * 3] * 3
assert av.__version__
"""
subprocess.run( # noqa: S603 - the caller passes the clean CI interpreter explicitly.
[str(python), "-c", source],
check=True,
cwd=Path.cwd().parent,
)
subprocess.run( # noqa: S603 - the caller passes the clean CI interpreter explicitly.
[str(python), "-m", "pip", "check"], check=True
)
def main() -> None:
"""Validate one wheel against a previously prepared clean environment."""
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument("--wheel", type=Path, required=True)
parser.add_argument("--python", type=Path, required=True)
parser.add_argument("--manifest", type=Path, required=True)
args = parser.parse_args()
_validate_metadata(args.wheel)
_validate_manifest(args.manifest)
_run_installed_wheel_probe(args.python)
if __name__ == "__main__":
main()

View File

@ -20,10 +20,10 @@ jobs:
runs-on: ubuntu-latest
steps:
- name: 📥 Checkout the repository
uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: 🐍 Install uv and set Python version ${{ inputs.python-version }}
uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
with:
python-version: ${{ inputs.python-version }}
activate-environment: true

View File

@ -22,10 +22,10 @@ jobs:
timeout-minutes: 10
steps:
- name: 📥 Checkout the repository
uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: 🐍 Install uv and set Python
uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
with:
python-version: "3.10"
activate-environment: true

View File

@ -19,7 +19,7 @@ jobs:
runs-on: ubuntu-latest
steps:
- name: Checkout repository
uses: actions/checkout@v7.0.1
uses: actions/checkout@v6
- name: 🔗 Link Checker
uses: lycheeverse/lychee-action@v2

View File

@ -22,57 +22,31 @@ jobs:
link-check: ${{ github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository }}
run-tests:
name: Pytest Run
name: Import Test and Pytest Run
# needs: build # todo: consider using this build package for testing
timeout-minutes: 10
strategy:
fail-fast: false
matrix:
os: ["ubuntu-latest", "windows-latest", "macos-latest"]
python-version: ["3.10", "3.11", "3.12", "3.13"]
cv2: ["none"]
include:
- { os: "ubuntu-latest", python-version: "3.13", cv2: "opencv-python" }
- { os: "windows-latest", python-version: "3.13", cv2: "opencv-python" }
- { os: "macos-latest", python-version: "3.13", cv2: "opencv-python" }
- { os: "ubuntu-latest", python-version: "3.13", cv2: "opencv-python-headless" }
- { os: "windows-latest", python-version: "3.13", cv2: "opencv-python-headless" }
- { os: "macos-latest", python-version: "3.13", cv2: "opencv-python-headless" }
python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
runs-on: ${{ matrix.os }}
steps:
- name: 📥 Checkout the repository
uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: 🐍 Install uv and set Python version ${{ matrix.python-version }}
uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
with:
python-version: ${{ matrix.python-version }}
activate-environment: true
- name: 🚀 Install Packages
run: uv sync --frozen --group dev --extra metrics
- name: 📷 Install selected OpenCV package
if: matrix.cv2 != 'none'
run: uv pip install ${{ matrix.cv2 }}
- name: 🧭 Confirm selected cv2 backend
env:
EXPECTED_BACKEND: ${{ matrix.cv2 == 'none' && 'fallback' || 'opencv' }}
run: |
import os
from supervision import _cv2
expected = os.environ["EXPECTED_BACKEND"]
assert _cv2.BACKEND_NAME == expected, f"expected {expected!r}, got {_cv2.BACKEND_NAME!r}"
shell: python
run: uv sync --frozen --group dev --group docs --extra metrics
- name: 📦 Run the Import test
run: python -c "import supervision; from supervision import assets; from supervision import metrics; print(supervision.__version__)"
- name: 📋 Print installed packages
run: uv pip list
- name: 🧪 Run the Test
run: pytest src/ tests/ --cov=supervision --cov-report=xml
@ -82,7 +56,7 @@ jobs:
coverage report
- name: Upload coverage to Codecov
uses: codecov/codecov-action@v7
uses: codecov/codecov-action@v6
with:
token: ${{ secrets.CODECOV_TOKEN }}
files: "coverage.xml"
@ -94,66 +68,23 @@ jobs:
- name: Minimize uv cache
run: uv cache prune --ci
clean-wheel:
name: Clean Wheel on ${{ matrix.os }} / Python ${{ matrix.python-version }}
timeout-minutes: 10
strategy:
fail-fast: false
matrix:
os: ["ubuntu-latest", "windows-latest", "macos-latest"]
python-version: ["3.10", "3.13"]
runs-on: ${{ matrix.os }}
steps:
- name: 📥 Checkout the repository
uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
- name: 🐍 Install uv and set Python version ${{ matrix.python-version }}
uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
with:
python-version: ${{ matrix.python-version }}
activate-environment: true
- name: 🏗️ Build the wheel
run: |
uv sync --frozen --group build
uv build --wheel
- name: 🧼 Create an isolated wheel environment
shell: bash
run: |
uv venv --clear --seed .clean-wheel
if [ "$RUNNER_OS" = "Windows" ]; then
echo "CLEAN_PYTHON=$PWD/.clean-wheel/Scripts/python.exe" >> "$GITHUB_ENV"
else
echo "CLEAN_PYTHON=$PWD/.clean-wheel/bin/python" >> "$GITHUB_ENV"
fi
- name: 📦 Install and verify the wheel without OpenCV
shell: bash
run: |
uv pip install --python "$CLEAN_PYTHON" --strict dist/*.whl
"$CLEAN_PYTHON" .github/scripts/verify_clean_wheel.py \
--wheel dist/*.whl \
--python "$CLEAN_PYTHON" \
--manifest tests/cv2/installed_wheel_fallback_manifest.txt
testing-guardian:
runs-on: ubuntu-latest
needs: [run-tests, clean-wheel]
needs: run-tests
if: always()
steps:
- name: 📋 Display test result
run: echo "tests=${{ needs.run-tests.result }}, clean-wheel=${{ needs.clean-wheel.result }}"
run: echo "${{ needs.run-tests.result }}"
- name: ❌ Fail guardian on test failure
if: needs.run-tests.result == 'failure' || needs.clean-wheel.result == 'failure'
if: needs.run-tests.result == 'failure'
run: exit 1
# Ensure that cancelled or skipped test runs still cause this guardian job to fail,
# using an explicit exit code instead of relying on timeout behavior.
- name: ⚠️ cancelled or skipped...
if: contains(fromJSON('["cancelled", "skipped"]'), needs.run-tests.result) || contains(fromJSON('["cancelled", "skipped"]'), needs.clean-wheel.result)
if: contains(fromJSON('["cancelled", "skipped"]'), needs.run-tests.result)
run: |
echo "run-tests job result is '${{ needs.run-tests.result }}'; failing explicitly."
exit 1
- name: ✅ tests succeeded
if: needs.run-tests.result == 'success'
run: echo "All tests completed successfully."
run: echo "All tests completed successfully in job 'run-tests'."

View File

@ -32,12 +32,12 @@ jobs:
timeout-minutes: 10
steps:
- name: 📥 Checkout the repository
uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
with:
fetch-depth: 0
- name: 🐍 Install uv and set Python
uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
with:
python-version: "3.10"
activate-environment: true
@ -62,32 +62,15 @@ jobs:
env:
MKDOCS_GIT_COMMITTERS_APIKEY: ${{ secrets.GITHUB_TOKEN }}
run: |
if mike list | grep -Eq '^latest(\s|$)'; then mike delete latest; fi
mike deploy --push latest
- name: 🏷️ Determine release deployment metadata
id: release_metadata
run: |
is_rc=false
release_tag=""
if [[ "$GITHUB_EVENT_NAME" == "release" ]]; then
release_tag="${GITHUB_REF_NAME#v}"
release_tag="${release_tag%.post*}"
release_tag_lower="${release_tag,,}"
# Match RC suffixes with separators (1.0-rc1, 1.0.rc1) or compact form (1.0rc1).
if [[ "$release_tag_lower" =~ (^|[._-])rc[0-9]+$ ]] || [[ "$release_tag_lower" =~ [0-9]rc[0-9]+$ ]]; then
is_rc=true
fi
fi
echo "is_rc=$is_rc" >> "$GITHUB_OUTPUT"
echo "release_tag=$release_tag" >> "$GITHUB_OUTPUT"
- name: 🚀 Deploy Release Docs
if: github.event_name == 'release' && github.event.action == 'published' && steps.release_metadata.outputs.is_rc != 'true'
if: github.event_name == 'release' && github.event.action == 'published'
env:
MKDOCS_GIT_COMMITTERS_APIKEY: ${{ secrets.GITHUB_TOKEN }}
run: |
mike deploy --push "${{ steps.release_metadata.outputs.release_tag }}"
release_tag="${GITHUB_REF_NAME#v}"
mike deploy --push "$release_tag"
# IndexNow key: 0d5d9799b1cc4a39825146388c6781eb
# This key must stay in sync across three files:
@ -101,7 +84,7 @@ jobs:
(github.event_name == 'push' && github.ref == 'refs/heads/develop') ||
github.event_name == 'workflow_dispatch' ||
(github.event_name == 'push' && github.ref == 'refs/heads/release/latest') ||
(github.event_name == 'release' && github.event.action == 'published' && steps.release_metadata.outputs.is_rc != 'true')
(github.event_name == 'release' && github.event.action == 'published')
run: |
cp docs/robots.txt /tmp/robots.txt
cp docs/llms.txt /tmp/llms.txt

View File

@ -3,12 +3,9 @@ name: Publish Supervision Pre-Releases to PyPI
on:
push:
tags:
- "[0-9]+.[0-9]+.[0-9]+a[0-9]+"
- "[0-9]+.[0-9]+.[0-9]+b[0-9]+"
- "[0-9]+.[0-9]+.[0-9]+rc[0-9]+"
- "[0-9]+.[0-9]+.[0-9]+.a[0-9]+"
- "[0-9]+.[0-9]+.[0-9]+.b[0-9]+"
- "[0-9]+.[0-9]+.[0-9]+.rc[0-9]+"
- "[0-9]+.[0-9]+[0-9]+.[0-9]+a[0-9]"
- "[0-9]+.[0-9]+[0-9]+.[0-9]+b[0-9]"
- "[0-9]+.[0-9]+[0-9]+.[0-9]+rc[0-9]"
workflow_dispatch:
pull_request:
branches: [main, develop]
@ -46,6 +43,6 @@ jobs:
- name: 🚀 Publish to PyPi
if: github.event_name != 'pull_request'
uses: pypa/gh-action-pypi-publish@ba38be9e461d3875417946c167d0b5f3d385a247 # v1.14.1
uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # v1.14.0
with:
attestations: true

View File

@ -40,7 +40,7 @@ jobs:
- name: 📦 Upload assets to Release
if: github.event_name == 'release'
uses: AButler/upload-release-assets@v4.0
uses: AButler/upload-release-assets@v3.0
with:
files: "dist/*"
repo-token: ${{ secrets.GITHUB_TOKEN }}
@ -48,6 +48,6 @@ jobs:
- name: 🚀 Publish to PyPi
# We only want to publish to PyPi if the event is a release and it's not a pre-release.
if: (github.event_name == 'release' && github.event.release.prerelease != true) || github.event_name == 'workflow_dispatch'
uses: pypa/gh-action-pypi-publish@ba38be9e461d3875417946c167d0b5f3d385a247 # v1.14.1
uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # v1.14.0
with:
attestations: true

View File

@ -38,7 +38,7 @@ jobs:
- name: 🚀 Publish to Test-PyPi
if: github.event_name != 'pull_request'
uses: pypa/gh-action-pypi-publish@ba38be9e461d3875417946c167d0b5f3d385a247 # v1.14.1
uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # v1.14.0
with:
repository-url: https://test.pypi.org/legacy/
attestations: true

22
.gitignore vendored
View File

@ -156,27 +156,11 @@ Desktop.ini
# local data
data/
examples/*/outputs/
!src/supervision/_cv2/data/
!src/supervision/_cv2/data/*
*.mp4
*.pt
# some artifacts
/*.py
/*.jpg
/*.png
/*.tif
/*.json
# Claude working scratchpad (plans, lessons, ephemeral artefacts)
.claude/logs/
.claude/logs
.claude/state/
.claude/worktrees/
.developments/
.plans/
.notes/
.reports/
.temp/
.tmp/
@ -185,7 +169,3 @@ _resolutions/
_reviews/
tasks/
*.local.md
output/
notebooks/
releases/

View File

@ -1,5 +1,5 @@
default_language_version:
python: python3.10
python: python3
ci:
autofix_prs: true
@ -8,14 +8,6 @@ ci:
autoupdate_commit_msg: "chore(pre_commit): ⬆ pre_commit autoupdate"
repos:
- repo: local
hooks:
- id: check-doctest-fences
name: check doctest fences
entry: python .github/scripts/check_doctest_fences.py
language: python
files: ^src/.*\.py$
- repo: https://github.com/pre-commit/pre-commit-hooks
rev: v6.0.0
hooks:
@ -36,8 +28,8 @@ repos:
- id: end-of-file-fixer
- id: mixed-line-ending
- repo: https://github.com/rbubley/mirrors-prettier
rev: v3.9.6
- repo: https://github.com/JoC0de/pre-commit-prettier
rev: v3.8.3 # using tag; previously pinned SHA when tags were not persistent
hooks:
- id: prettier
files: \.(ya?ml|toml)$
@ -45,11 +37,9 @@ repos:
args: ["--print-width=120"]
- repo: https://github.com/tox-dev/pyproject-fmt
rev: v2.26.0
rev: v2.21.1
hooks:
- id: pyproject-fmt
additional_dependencies:
- "tomli>=2.0.1"
- repo: https://github.com/abravalheri/validate-pyproject
rev: v0.25
@ -57,7 +47,7 @@ repos:
- id: validate-pyproject
- repo: https://github.com/astral-sh/ruff-pre-commit
rev: v0.16.1
rev: v0.15.12
hooks:
- id: ruff-check
args: ["--fix"]
@ -68,37 +58,24 @@ repos:
rev: 1.0.0
hooks:
- id: mdformat
name: mdformat (gfm)
exclude: ^docs/
additional_dependencies:
- "mdformat-frontmatter"
- "mdformat-gfm"
- "mdformat-ruff"
args: ["--number", "--wrap=no"]
- id: mdformat
name: mdformat (mkdocs)
files: ^docs/
additional_dependencies:
- "mdformat-frontmatter"
- "mdformat-mkdocs[recommended]>=2.1.0"
- "mdformat-ruff"
args: ["--number", "--wrap=no"]
args: ["--number"]
exclude: ^(docs/changelog\.md|docs/deprecated\.md)$
- repo: https://github.com/pre-commit/mirrors-mypy
rev: v2.3.0
rev: v1.20.2
hooks:
- id: mypy
language_version: python3.11
additional_dependencies:
- "numpy>=2.0"
- "types-PyYAML"
- "types-requests"
- "types-tqdm"
- repo: https://github.com/codespell-project/codespell
rev: v2.4.3
rev: v2.4.2
hooks:
- id: codespell
exclude: ^src/supervision/_cv2/data/hershey_fonts\.json$
additional_dependencies:
- "tomli>=2.0.1"

181
AGENTS.md
View File

@ -1,153 +1,98 @@
# Agent Guidelines for `supervision`
Behave like a senior contributor: precise, efficient, maintainable. When this file and [CONTRIBUTING.md](.github/CONTRIBUTING.md) conflict, **CONTRIBUTING.md wins**.
These instructions define how AI agents (GitHub Copilot, Claude, etc.) should behave when
assigned an issue, task, or multi-step problem in this repository.
______________________________________________________________________
Behave like a senior contributor: precise, efficient, aligned with the project's
philosophy, and focused on maintainability and clarity.
---
## 1. Before You Code
- Read the task thoroughly; group clarifications into one ask.
- Outline a plan before making changes.
- Check whether the feature already exists under a different name.
- Confirm alignment with `src/supervision/` architecture.
- Read the task/issue thoroughly before acting.
- Identify missing information; ask **one targeted clarification question** if needed.
- Outline a step-by-step plan before making changes.
- Check whether the feature or fix already exists under a different name.
- Confirm alignment with the repository's architecture (`src/supervision/`).
______________________________________________________________________
---
## 2. Repository Architecture
## 2. Repository Conventions
**Package root**: `src/supervision/` — all library code. **Tests**: `tests/` — mirrors `src/supervision/`. **Public API**: `src/supervision/__init__.py`.
All work must follow the conventions of the `supervision` library
(see [CONTRIBUTING.md](.github/CONTRIBUTING.md) for full details).
```
src/supervision/
├── detection/
│ ├── core.py — Detections dataclass; all model connectors as classmethods
│ ├── compact_mask.py — compact mask representation
│ ├── vlm.py — VLM connectors (Florence-2, Gemini, Qwen, PaliGemma)
│ ├── utils/ — pure NumPy helpers: boxes, converters, iou_and_nms, masks, polygons
│ ├── line_zone.py — LineZone
│ └── tools/ — InferenceSlicer, PolygonZone, CSVSink, JSONSink, DetectionsSmoother
├── annotators/core.py — BoxAnnotator, MaskAnnotator, LabelAnnotator, … each: .annotate(scene, detections)
├── key_points/ — KeyPoints, EdgeAnnotator, VertexAnnotator (use this, NOT keypoint/ — see §4)
├── tracker/ — DEPRECATED
├── dataset/core.py — DetectionDataset / ClassificationDataset (YOLO / COCO / Pascal VOC)
├── geometry/core.py — Point, Rect, Vector, Position
├── metrics/ — mAP, confusion matrix (requires --extra metrics)
├── utils/internal.py — warn_deprecated, deprecated_parameter, internal helpers
└── config.py — string constants; always import from here, never use literals
```
### Branching & Commits
### Key design patterns
- Branch from `develop` using prefixes: `feat/`, `fix/`, `docs/`, `refactor/`, `test/`, `chore/`.
- Use **conventional commits**: `feat:`, `fix:`, `docs:`, `refactor:`, `perf:`, `test:`, `chore:`.
- PRs must target the `develop` branch.
- **`Detections` is the lingua franca** — every connector, tracker, and annotator speaks `Detections`. New connector = `@classmethod from_<framework>(cls, result) -> Detections`.
- **Annotators are composable** — receive `scene` (BGR `np.ndarray`) + `detections`, return annotated copy.
- **`data` dict extensibility** — per-detection metadata in `detections.data` as `np.ndarray` aligned with `xyxy`. Keys are constants from `config.py`.
- **Vectorized throughout** — NumPy arrays, no Python loops in hot paths. Never write `for det in detections`.
- **Lazy-import heavy deps**`torch`, `transformers`, `ultralytics` must be imported inside the function that needs them, never at module top level.
### Code Style
______________________________________________________________________
- **Formatting and linting** are enforced by **pre-commit**.
The hook chain typically includes: ruff-check, ruff-format, codespell, mdformat,
prettier, pyproject-fmt, and standard pre-commit-hooks (trailing whitespace, YAML, TOML, etc.).
- **Type hints**: required on all new code. Type checking with mypy is encouraged but not
currently enforced systematically by pre-commit; see [.github/CONTRIBUTING.md](.github/CONTRIBUTING.md)
for the latest type-checking expectations.
- **Docstrings**: Google Python docstring style. Required for all new functions and classes.
Docstrings should include usage examples demonstrating the function with primitive values
so they serve as runnable documentation.
## 3. Agent-Critical Rules
### API Consistency
These supplement [CONTRIBUTING.md](.github/CONTRIBUTING.md) — covering gaps or agent-specific failure modes.
- Follow existing naming patterns.
- Maintain backward compatibility unless explicitly allowed.
- Prefer functional utilities over complex classes unless justified.
**Doc headings**: `###` max in docstrings and docs. `####` renders identically to bold in mkdocs — use `**bold**` instead.
### Performance
**Type hints**: required on all new code. mypy is enforced by pre-commit (`.pre-commit-config.yaml`).
- Avoid unnecessary copies of NumPy arrays.
- Prefer vectorized operations over Python loops in hot paths.
- Use OpenCV operations efficiently.
**Function docstrings**: every new or modified function, including private helpers and tests, must have a succinct docstring explaining its purpose. Put function-level why/what/how context inside the function docstring, not in a comment before the function. Public APIs still require the full Google-style structure described below.
---
**Readable argument lists**: do not put multi-branch conditional expressions inside function or constructor arguments. If an argument needs more than a simple `a if condition else b`, assign it to a named local variable before the call.
## 3. Implementing Features
**Inline comments**: write code so the intent is clear from names, small helpers, and straightforward control flow. For non-trivial logic inside a function that still needs context, add concise inline comments explaining why the code exists, what invariant it protects, and how the tricky part works. Do not put comments before functions; use the function docstring instead. Do not comment obvious assignments, mechanical plumbing, lint-only changes, typing-only changes, or pure docs edits.
- Provide a minimal, clean implementation.
- Include type hints and Google-style docstrings with usage examples.
- All new functionality must be covered with tests, including edge cases.
- Add or update documentation (docstrings + mkdocs entries if applicable).
- Ensure compatibility with core dependencies: NumPy, OpenCV, SciPy.
**Doctest determinism** — output must be reproducible across platforms:
---
- Use `# doctest: +ELLIPSIS` for floats that vary by platform.
- Seed any RNG before calling it.
- Never assert `dict` or `set` iteration order.
- No network or filesystem access outside `supervision/assets/`.
## 4. Fixing Bugs
**⚠ Test structure** — agents frequently fail here; read [CONTRIBUTING.md §Tests](.github/CONTRIBUTING.md#-tests) carefully: AAA structure, class grouping, parametrize with `pytest.param(..., id="slug")`, one-line docstring per test.
1. Reproduce and understand the root cause.
2. Write a test that reproduces the bug (it should fail before the fix).
3. Apply a minimal, targeted fix.
4. Verify the test passes and no other components break.
For branching, commit, code style, and API design conventions see [CONTRIBUTING.md](.github/CONTRIBUTING.md).
---
______________________________________________________________________
## 5. Refactoring
## 4. Deprecated Module Aliases
- Preserve behavior and API stability.
- Improve readability or performance.
- Reduce duplication.
- Avoid large, sweeping refactors unless explicitly requested.
`supervision.keypoint` deprecated since `0.27.0`, removed in `0.31.0`. Always import from `supervision.key_points`, not `supervision.keypoint`.
---
______________________________________________________________________
## 6. Before You Commit
## 5. Deprecating APIs
**Minimum window**: deprecated APIs must remain for at least **3 minor releases** before removal. Example: deprecated in `0.29.0` → removed in `0.32.0`.
- Module-level: `supervision.utils.internal.warn_deprecated` in the deprecated module's own `__init__.py`
- Parameter renamed (old→new): `supervision.utils.internal.deprecated_parameter` decorator
- Public function, method, or class: `@deprecated` from `pydeprecate`
Always name the version introduced and the removal version:
```python
warn_deprecated("'foo' deprecated in `0.29.0`, removed in `0.32.0`. Use 'bar'.")
```
______________________________________________________________________
## 6. Implementing Features
- Minimal implementation; type hints and Google docstrings with usage examples.
- Tests covering new functionality and edge cases (see [CONTRIBUTING.md §Tests](.github/CONTRIBUTING.md#-tests)).
- Update docstrings and mkdocs entries as needed.
- Update [docs/changelog.md](docs/changelog.md) for every functional change or bug fix, including user-visible behavior changes. Skip changelog entries for lint-only, type-only, formatting-only, and pure documentation-only changes.
**Extending `Detections`**: store metadata in `detections.data` as `np.ndarray` aligned with `xyxy`; define the key as a constant in `config.py` (e.g. `CLASS_NAME_DATA_FIELD`, `ORIENTED_BOX_COORDINATES`).
**New model connector** (`detection/core.py`):
```python
@classmethod
def from_myframework(cls, result) -> "Detections":
import myframework # noqa: F401 — lazy import
xyxy = ... # (N, 4)
return cls(
xyxy=xyxy,
confidence=...,
class_id=...,
data={CLASS_NAME_DATA_FIELD: np.array([...])},
)
```
VLM connectors go in `detection/vlm.py`, not `core.py`.
______________________________________________________________________
## 7. Bugs & Refactoring
**Bugs**: reproduce → write failing test → minimal fix → verify no regressions.
**Refactoring**: preserve behavior and API; reduce duplication; avoid sweeping changes unless requested; apply §5 deprecation when removing public API.
______________________________________________________________________
## 8. Before You Commit
Always run these before committing:
```bash
uv run pytest --cov=supervision
uv run pre-commit run --all-files
```
Capture a baseline before changes to avoid introducing new failures:
```bash
STASH_BEFORE=$(git rev-parse refs/stash 2>/dev/null)
git stash push --include-untracked
uv run pytest -q 2>&1 | tee /tmp/baseline.txt
[ "$(git rev-parse refs/stash 2>/dev/null)" != "$STASH_BEFORE" ] && git stash pop
uv run pytest -q 2>&1 | tee /tmp/after.txt
diff /tmp/baseline.txt /tmp/after.txt
```
Any test passing in baseline but failing after = blocker.
- All pre-commit hooks must pass (formatting, linting, type checking, spell check, etc.).
- All tests must pass before opening a PR. Note: some existing tests in the repo may
already be failing — your changes must not introduce new failures.
- Fix any issues reported and re-run until clean.

View File

@ -2,8 +2,20 @@ MIT License
Copyright (c) 2022 Roboflow
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

216
README.md
View File

@ -1,6 +1,6 @@
<div align="center">
<p>
<a align="center" href="https://supervision.roboflow.com" target="_blank">
<a align="center" href="" target="https://supervision.roboflow.com">
<img
width="100%"
src="https://media.roboflow.com/open-source/supervision/rf-supervision-banner.png?updatedAt=1678995927529"
@ -14,9 +14,16 @@
<br>
[![version](https://badge.fury.io/py/supervision.svg)](https://badge.fury.io/py/supervision) [![downloads](https://img.shields.io/pypi/dm/supervision)](https://pypistats.org/packages/supervision) [![license](https://img.shields.io/pypi/l/supervision)](LICENSE.md) [![python-version](https://img.shields.io/pypi/pyversions/supervision)](https://badge.fury.io/py/supervision) [![codecov](https://codecov.io/gh/roboflow/supervision/graph/badge.svg?token=HMNJ5FVZ36)](https://codecov.io/gh/roboflow/supervision)
[![version](https://badge.fury.io/py/supervision.svg)](https://badge.fury.io/py/supervision)
[![downloads](https://img.shields.io/pypi/dm/supervision)](https://pypistats.org/packages/supervision)
[![license](https://img.shields.io/pypi/l/supervision)](LICENSE.md)
[![python-version](https://img.shields.io/pypi/pyversions/supervision)](https://badge.fury.io/py/supervision)
[![codecov](https://codecov.io/gh/roboflow/supervision/graph/badge.svg?token=HMNJ5FVZ36)](https://codecov.io/gh/roboflow/supervision)
[![snyk](https://snyk.io/advisor/python/supervision/badge.svg)](https://snyk.io/advisor/python/supervision) [![colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/roboflow/supervision/blob/main/demo.ipynb) [![gradio](https://img.shields.io/badge/%F0%9F%A4%97%20Hugging%20Face-Spaces-blue)](https://huggingface.co/spaces/Roboflow/Annotators) [![discord](https://img.shields.io/discord/1159501506232451173?logo=discord&label=discord&labelColor=fff&color=5865f2&link=https%3A%2F%2Fdiscord.gg%2FGbfgXGJ8Bk)](https://discord.gg/GbfgXGJ8Bk)
[![snyk](https://snyk.io/advisor/python/supervision/badge.svg)](https://snyk.io/advisor/python/supervision)
[![colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/roboflow/supervision/blob/main/demo.ipynb)
[![gradio](https://img.shields.io/badge/%F0%9F%A4%97%20Hugging%20Face-Spaces-blue)](https://huggingface.co/spaces/Roboflow/Annotators)
[![discord](https://img.shields.io/discord/1159501506232451173?logo=discord&label=discord&labelColor=fff&color=5865f2&link=https%3A%2F%2Fdiscord.gg%2FGbfgXGJ8Bk)](https://discord.gg/GbfgXGJ8Bk)
<div align="center">
<a href="https://trendshift.io/repositories/124" target="_blank"><img src="https://trendshift.io/api/badge/repositories/124" alt="roboflow%2Fsupervision | Trendshift" style="width: 250px; height: 55px;" width="250" height="55"/></a>
@ -24,29 +31,14 @@
</div>
<details>
<summary><strong>📑 Table of Contents</strong></summary>
## 👋 hello
- [👋 Hello](#-hello)
- [💻 Install](#-install)
- [🔥 Quickstart](#-quickstart)
- [Models](#models)
- [Annotators](#annotators)
- [Datasets](#datasets)
- [🎬 Tutorials](#-tutorials)
- [💜 Built with Supervision](#-built-with-supervision)
- [📚 Documentation](#-documentation)
- [🏆 Contribution](#-contribution)
**We write your reusable computer vision tools.** Whether you need to load your dataset from your hard drive, draw detections on an image or video, or count how many detections are in a zone. You can count on us! 🤝
</details>
## 💻 install
## 👋 Hello
**We are your essential toolkit for computer vision.** From data loading to real-time zone counting, we provide the building blocks so you can focus on building applications around your models. 🤝
## 💻 Install
Pip install the supervision package in a [**Python>=3.10**](https://www.python.org/) environment.
Pip install the supervision package in a
[**Python>=3.9**](https://www.python.org/) environment.
```bash
pip install supervision
@ -54,9 +46,9 @@ pip install supervision
Read more about conda, mamba, and installing from source in our [guide](https://roboflow.github.io/supervision/).
## 🔥 Quickstart
## 🔥 quickstart
### Models
### models
Supervision was designed to be model agnostic. Just plug in any classification, detection, or segmentation model. For your convenience, we have created [connectors](https://supervision.roboflow.com/latest/detection/core/#detections) for the most popular libraries like Ultralytics, Transformers, MMDetection, or Inference. Other integrations, like `rfdetr`, already return `sv.Detections` directly.
@ -67,7 +59,7 @@ import supervision as sv
from PIL import Image
from rfdetr import RFDETRSmall
image = Image.open("path/to/image.jpg")
image = Image.open(...)
model = RFDETRSmall()
detections = model.predict(image, threshold=0.5)
@ -80,25 +72,25 @@ len(detections)
- inference
Running with [Inference](https://github.com/roboflow/inference) requires a [Roboflow API KEY](https://docs.roboflow.com/api-reference/authentication#retrieve-an-api-key).
Running with [Inference](https://github.com/roboflow/inference) requires a [Roboflow API KEY](https://docs.roboflow.com/api-reference/authentication#retrieve-an-api-key).
```python
import supervision as sv
from PIL import Image
from inference import get_model
```python
import supervision as sv
from PIL import Image
from inference import get_model
image = Image.open("path/to/image.jpg")
model = get_model(model_id="rfdetr-small", api_key="ROBOFLOW_API_KEY")
result = model.infer(image)[0]
detections = sv.Detections.from_inference(result)
image = Image.open(...)
model = get_model(model_id="rfdetr-small", api_key="ROBOFLOW_API_KEY")
result = model.infer(image)[0]
detections = sv.Detections.from_inference(result)
len(detections)
# 5
```
len(detections)
# 5
```
</details>
### Annotators
### annotators
Supervision offers a wide range of highly customizable [annotators](https://supervision.roboflow.com/latest/detection/annotators/), allowing you to compose the perfect visualization for your use case.
@ -106,8 +98,7 @@ Supervision offers a wide range of highly customizable [annotators](https://supe
import cv2
import supervision as sv
image = cv2.imread("path/to/image.jpg")
# Assuming detections are obtained from a model
image = cv2.imread(...)
detections = sv.Detections(...)
box_annotator = sv.BoxAnnotator()
@ -116,7 +107,7 @@ annotated_frame = box_annotator.annotate(scene=image.copy(), detections=detectio
https://github.com/roboflow/supervision/assets/26109316/691e219c-0565-4403-9218-ab5644f39bce
### Datasets
### datasets
Supervision provides a set of [utils](https://supervision.roboflow.com/latest/datasets/core/) that allow you to load, split, merge, and save datasets in one of the supported formats.
@ -140,97 +131,97 @@ for path, image, annotation in ds:
pass
```
<details>
<details close>
<summary>👉 more dataset utils</summary>
- load
```python
dataset = sv.DetectionDataset.from_yolo(
images_directory_path=...,
annotations_directory_path=...,
data_yaml_path=...,
)
```python
dataset = sv.DetectionDataset.from_yolo(
images_directory_path=...,
annotations_directory_path=...,
data_yaml_path=...,
)
dataset = sv.DetectionDataset.from_pascal_voc(
images_directory_path=...,
annotations_directory_path=...,
)
dataset = sv.DetectionDataset.from_pascal_voc(
images_directory_path=...,
annotations_directory_path=...,
)
dataset = sv.DetectionDataset.from_coco(
images_directory_path=...,
annotations_path=...,
)
```
dataset = sv.DetectionDataset.from_coco(
images_directory_path=...,
annotations_path=...,
)
```
- split
```python
train_dataset, test_dataset = dataset.split(split_ratio=0.7)
test_dataset, valid_dataset = test_dataset.split(split_ratio=0.5)
```python
train_dataset, test_dataset = dataset.split(split_ratio=0.7)
test_dataset, valid_dataset = test_dataset.split(split_ratio=0.5)
len(train_dataset), len(test_dataset), len(valid_dataset)
# (700, 150, 150)
```
len(train_dataset), len(test_dataset), len(valid_dataset)
# (700, 150, 150)
```
- merge
```python
ds_1 = sv.DetectionDataset(...)
len(ds_1)
# 100
ds_1.classes
# ['dog', 'person']
```python
ds_1 = sv.DetectionDataset(...)
len(ds_1)
# 100
ds_1.classes
# ['dog', 'person']
ds_2 = sv.DetectionDataset(...)
len(ds_2)
# 200
ds_2.classes
# ['cat']
ds_2 = sv.DetectionDataset(...)
len(ds_2)
# 200
ds_2.classes
# ['cat']
ds_merged = sv.DetectionDataset.merge([ds_1, ds_2])
len(ds_merged)
# 300
ds_merged.classes
# ['cat', 'dog', 'person']
```
ds_merged = sv.DetectionDataset.merge([ds_1, ds_2])
len(ds_merged)
# 300
ds_merged.classes
# ['cat', 'dog', 'person']
```
- save
```python
dataset.as_yolo(
images_directory_path=...,
annotations_directory_path=...,
data_yaml_path=...,
)
```python
dataset.as_yolo(
images_directory_path=...,
annotations_directory_path=...,
data_yaml_path=...,
)
dataset.as_pascal_voc(
images_directory_path=...,
annotations_directory_path=...,
)
dataset.as_pascal_voc(
images_directory_path=...,
annotations_directory_path=...,
)
dataset.as_coco(
images_directory_path=...,
annotations_path=...,
)
```
dataset.as_coco(
images_directory_path=...,
annotations_path=...,
)
```
- convert
```python
sv.DetectionDataset.from_yolo(
images_directory_path=...,
annotations_directory_path=...,
data_yaml_path=...,
).as_pascal_voc(
images_directory_path=...,
annotations_directory_path=...,
)
```
```python
sv.DetectionDataset.from_yolo(
images_directory_path=...,
annotations_directory_path=...,
data_yaml_path=...,
).as_pascal_voc(
images_directory_path=...,
annotations_directory_path=...,
)
```
</details>
## 🎬 Tutorials
## 🎬 tutorials
Want to learn how to use Supervision? Explore our [how-to guides](https://supervision.roboflow.com/develop/how_to/detect_and_annotate/), [end-to-end examples](./examples), [cheatsheet](https://roboflow.github.io/cheatsheet-supervision/), and [cookbooks](https://supervision.roboflow.com/develop/cookbooks/)!
@ -250,7 +241,7 @@ Want to learn how to use Supervision? Explore our [how-to guides](https://superv
<div><strong>Created: 11 Jan 2024</strong></div>
<br/>Learn how to track and estimate the speed of vehicles using YOLO, ByteTrack, and Roboflow Inference. This comprehensive tutorial covers object detection, multi-object tracking, filtering detections, perspective transformation, speed estimation, visualization improvements, and more.</p>
## 💜 Built with Supervision
## 💜 built with supervision
Did you build something cool using supervision? [Let us know!](https://github.com/roboflow/supervision/discussions/categories/built-with-supervision)
@ -260,11 +251,11 @@ https://github.com/roboflow/supervision/assets/26109316/c9436828-9fbf-4c25-ae8c-
https://github.com/roboflow/supervision/assets/26109316/3ac6982f-4943-4108-9b7f-51787ef1a69f
## 📚 Documentation
## 📚 documentation
Visit our [documentation](https://roboflow.github.io/supervision) page to learn how supervision can help you build computer vision applications faster and more reliably.
## 🏆 Contribution
## 🏆 contribution
We love your input! Please see our [contributing guide](.github/CONTRIBUTING.md) to get started. Thank you 🙏 to all our contributors!
@ -276,6 +267,8 @@ We love your input! Please see our [contributing guide](.github/CONTRIBUTING.md)
<br>
<div align="center">
<div align="center">
<a href="https://youtube.com/roboflow">
<img
@ -310,7 +303,6 @@ We love your input! Please see our [contributing guide](.github/CONTRIBUTING.md)
src="https://media.roboflow.com/notebooks/template/icons/purple/forum.png?ik-sdk-version=javascript-1.4.3&updatedAt=1672949633584"
width="3%"
/>
</a>
<img src="https://raw.githubusercontent.com/ultralytics/assets/main/social/logo-transparent.png" width="3%"/>
<a href="https://blog.roboflow.com">
<img
@ -318,4 +310,6 @@ We love your input! Please see our [contributing guide](.github/CONTRIBUTING.md)
width="3%"
/>
</a>
</a>
</div>
</div>

View File

@ -5,7 +5,8 @@ description: API reference for supervision's assets module — download sample v
# Assets
Supervision offers an assets download utility that allows you to download image and video files that you can use in your demos.
Supervision offers an assets download utility that allows you to download image and video files
that you can use in your demos.
<div class="md-typeset">
<h2><a href="#supervision.assets.downloader.download_assets.download_assets">download_assets</a></h2>

File diff suppressed because it is too large Load Diff

View File

@ -1,13 +1,14 @@
---
comments: true
description: API reference for supervision's DetectionDataset and ClassificationDataset — load, merge, split, and convert datasets in YOLO, COCO, VOC, CreateML, and LabelMe formats.
description: API reference for supervision's DetectionDataset and ClassificationDataset — load, merge, split, and convert datasets in YOLO, COCO, and VOC formats.
---
# Datasets
!!! warning
Dataset API is still fluid and may change. If you use Dataset API in your project until further notice, freeze the `supervision` version in your `requirements.txt` or `setup.py`.
Dataset API is still fluid and may change. If you use Dataset API in your project until further notice, freeze the
`supervision` version in your `requirements.txt` or `setup.py`.
<div class="md-typeset">
<h2>DetectionDataset</h2>

View File

@ -5,32 +5,20 @@ status: deprecated
# Deprecated
These features are phased out due to better alternatives or potential issues in future versions. Deprecated functionalities are typically supported for multiple subsequent releases, providing time for users to transition to updated methods.
These features are phased out due to better alternatives or potential issues in future versions. Deprecated functionalities are supported for **five subsequent releases**, providing time for users to transition to updated methods.
- [`sv.ByteTrack`](https://supervision.roboflow.com/latest/trackers/#supervision.tracker.byte_tracker.core.ByteTrack) is deprecated in `supervision-0.28.0` in favour of `ByteTrackTracker` from the external [`trackers`](https://pypi.org/project/trackers/) package (`pip install trackers`). The update method is renamed from `update_with_detections()` to `update()`. Removal is planned for `supervision-0.31.0`.
- `supervision.keypoint` module is deprecated in `supervision-0.27.0`; use `supervision.key_points` instead. It will be removed in `supervision-0.31.0`.
- `create_tiles` in `supervision.utils.image` is deprecated in `supervision-0.27.0`. It will be removed in `supervision-0.31.0`.
- `ensure_cv2_image_for_processing` in `supervision.utils.conversion` is deprecated in `supervision-0.27.0`. It will be removed in `supervision-0.31.0`.
- Keypoint validation utilities in `supervision.validators` are deprecated in `supervision-0.27.0`. They will be removed in `supervision-0.31.0`.
- `normalized_xyxy` argument in [`sv.denormalize_boxes`](https://supervision.roboflow.com/latest/detection/utils/boxes/#supervision.detection.utils.boxes.denormalize_boxes) is deprecated in `supervision-0.27.0` and renamed to `xyxy`. Passing `normalized_xyxy=` emits a `FutureWarning`; support will be removed in `supervision-0.31.0`.
- `supervision.dataset.utils` import path for [`sv.rle_to_mask`](https://supervision.roboflow.com/latest/detection/utils/converters/#supervision.detection.utils.converters.rle_to_mask) and [`sv.mask_to_rle`](https://supervision.roboflow.com/latest/detection/utils/converters/#supervision.detection.utils.converters.mask_to_rle) is deprecated in `supervision-0.28.0`. These functions moved to `supervision.detection.utils.converters` and will be removed from `supervision.dataset.utils` in `supervision-0.31.0`.
- `sv.LMM` enum is deprecated in `supervision-0.27.0` and will be removed in `supervision-0.31.0`. Use `sv.VLM` instead.
- [`sv.Detections.from_lmm`](https://supervision.roboflow.com/latest/detection/core/#supervision.detection.core.Detections.from_lmm) classmethod is deprecated in `supervision-0.26.0` and will be removed in `supervision-0.31.0`. Use [`sv.Detections.from_vlm`](https://supervision.roboflow.com/latest/detection/core/#supervision.detection.core.Detections.from_vlm) instead.
- `KeyPoints.confidence` is deprecated in `supervision-0.29.0`. Use `KeyPoints.keypoint_confidence` instead. It will be removed in `supervision-0.32.0`.
- Public `validate_*` helper functions are deprecated in `supervision-0.29.0` and will be removed in `supervision-0.32.0`. Supervision internals now use private `_validate_*` helpers.
- `overlap_ratio_wh` in [`InferenceSlicer.__init__`](https://supervision.roboflow.com/latest/detection/tools/inference_slicer/) is deprecated and will be removed in `supervision-0.27.0`. Please set it to `None` and use `overlap_wh` instead.
- `sv.LMM` enum is deprecated and will be removed in `supervision-0.31.0`. Use `sv.VLM` instead.
- [`sv.Detections.from_lmm`](https://supervision.roboflow.com/0.26.0/detection/core/#supervision.detection.core.Detections.from_lmm) property is deprecated and will be removed in `supervision-0.31.0`. Use [`sv.Detections.from_vlm`](https://supervision.roboflow.com/0.26.0/detection/core/#supervision.detection.core.Detections.from_vlm) instead.
# Removed
### 0.27.0
- `overlap_ratio_wh` parameter in [`sv.InferenceSlicer`](https://supervision.roboflow.com/latest/detection/tools/inference_slicer/) has been removed. Use the pixel-based `overlap_wh` parameter instead.
- `overlap_filter_strategy` parameter in [`sv.InferenceSlicer`](https://supervision.roboflow.com/latest/detection/tools/inference_slicer/) has been removed. Use `overlap_strategy` instead.
### 0.26.0
- The `sv.DetectionDataset.images` property has been removed in `supervision-0.26.0`. Please loop over images with `for path, image, annotation in dataset:`, as that does not require loading all images into memory. Also, constructing `sv.DetectionDataset` with parameter `images` as `Dict[str, np.ndarray]` is deprecated and has been removed in `supervision-0.26.0`. Please pass a list of paths `List[str]` instead.
- The name `sv.BoundingBoxAnnotator` is deprecated and has been removed in `supervision-0.26.0`. It has been renamed to [`sv.BoxAnnotator`](https://supervision.roboflow.com/0.22.0/detection/annotators/#supervision.annotators.core.BoxAnnotator).
### 0.24.0
- The `frame_resolution_wh ` parameter in [`sv.PolygonZone`](detection/tools/polygon_zone.md/#supervision.detection.tools.polygon_zone.PolygonZone) has been removed.

View File

@ -7,531 +7,510 @@ description: API reference for supervision's annotator classes — draw bounding
Annotators accept detections and apply box or mask visualizations to the detections. Annotators have many available styles.
=== "Outlines"
=== "Box"
=== "Box"
```python
import supervision as sv
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
image = ...
detections = sv.Detections(...)
box_annotator = sv.BoxAnnotator()
annotated_frame = box_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
box_annotator = sv.BoxAnnotator()
annotated_frame = box_annotator.annotate(
scene=image.copy(),
detections=detections,
<div class="result" markdown>
![bounding-box-annotator-example](https://media.roboflow.com/supervision-annotator-examples/bounding-box-annotator-example-purple.png){ align=center width="800" }
</div>
=== "RoundBox"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
round_box_annotator = sv.RoundBoxAnnotator()
annotated_frame = round_box_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![round-box-annotator-example](https://media.roboflow.com/supervision-annotator-examples/round-box-annotator-example-purple.png){ align=center width="800" }
</div>
=== "BoxCorner"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
corner_annotator = sv.BoxCornerAnnotator()
annotated_frame = corner_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![box-corner-annotator-example](https://media.roboflow.com/supervision-annotator-examples/box-corner-annotator-example-purple.png){ align=center width="800" }
</div>
=== "Color"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
color_annotator = sv.ColorAnnotator()
annotated_frame = color_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![box-mask-annotator-example](https://media.roboflow.com/supervision-annotator-examples/box-mask-annotator-example-purple.png){ align=center width="800" }
</div>
=== "Circle"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
circle_annotator = sv.CircleAnnotator()
annotated_frame = circle_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![circle-annotator-example](https://media.roboflow.com/supervision-annotator-examples/circle-annotator-example-purple.png){ align=center width="800" }
</div>
=== "Dot"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
dot_annotator = sv.DotAnnotator()
annotated_frame = dot_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![dot-annotator-example](https://media.roboflow.com/supervision-annotator-examples/dot-annotator-example-purple.png){ align=center width="800" }
</div>
=== "Triangle"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
triangle_annotator = sv.TriangleAnnotator()
annotated_frame = triangle_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![triangle-annotator-example](https://media.roboflow.com/supervision-annotator-examples/triangle-annotator-example.png){ align=center width="800" }
</div>
=== "Ellipse"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
ellipse_annotator = sv.EllipseAnnotator()
annotated_frame = ellipse_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![ellipse-annotator-example](https://media.roboflow.com/supervision-annotator-examples/ellipse-annotator-example-purple.png){ align=center width="800" }
</div>
=== "Halo"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
halo_annotator = sv.HaloAnnotator()
annotated_frame = halo_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![halo-annotator-example](https://media.roboflow.com/supervision-annotator-examples/halo-annotator-example-purple.png){ align=center width="800" }
</div>
=== "PercentageBar"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
percentage_bar_annotator = sv.PercentageBarAnnotator()
annotated_frame = percentage_bar_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![percentage-bar-annotator-example](https://media.roboflow.com/supervision-annotator-examples/percentage-bar-annotator-example-purple.png){ align=center width="800" }
</div>
=== "Mask"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
mask_annotator = sv.MaskAnnotator()
annotated_frame = mask_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![mask-annotator-example](https://media.roboflow.com/supervision-annotator-examples/mask-annotator-example-purple.png){ align=center width="800" }
</div>
=== "Polygon"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
polygon_annotator = sv.PolygonAnnotator()
annotated_frame = polygon_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![polygon-annotator-example](https://media.roboflow.com/supervision-annotator-examples/polygon-annotator-example-purple.png){ align=center width="800" }
</div>
=== "Label"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
labels = [
f"{class_name} {confidence:.2f}"
for class_name, confidence in zip(
detections["class_name"],
detections.confidence,
)
```
]
<div class="result" markdown>
label_annotator = sv.LabelAnnotator(text_position=sv.Position.CENTER)
annotated_frame = label_annotator.annotate(
scene=image.copy(), detections=detections, labels=labels
)
```
![bounding-box-annotator-example](https://media.roboflow.com/supervision-annotator-examples/bounding-box-annotator-example-purple.png){ align=center width="800" }
<div class="result" markdown>
</div>
![label-annotator-example](https://media.roboflow.com/supervision-annotator-examples/label-annotator-example-purple.png){ align=center width="800" }
=== "RoundBox"
</div>
```python
import supervision as sv
=== "RichLabel"
image = ...
detections = sv.Detections(...)
```python
import supervision as sv
round_box_annotator = sv.RoundBoxAnnotator()
annotated_frame = round_box_annotator.annotate(
scene=image.copy(),
detections=detections,
image = ...
detections = sv.Detections(...)
labels = [
f"{class_name} {confidence:.2f}"
for class_name, confidence in zip(
detections["class_name"],
detections.confidence,
)
```
]
<div class="result" markdown>
rich_label_annotator = sv.RichLabelAnnotator(
font_path="TTF_FONT_PATH",
text_position=sv.Position.CENTER,
)
annotated_frame = rich_label_annotator.annotate(
scene=image.copy(),
detections=detections,
labels=labels,
)
```
![round-box-annotator-example](https://media.roboflow.com/supervision-annotator-examples/round-box-annotator-example-purple.png){ align=center width="800" }
<div class="result" markdown>
</div>
![label-annotator-example](https://media.roboflow.com/supervision-annotator-examples/label-annotator-example-purple.png){ align=center width="800" }
=== "BoxCorner"
</div>
```python
import supervision as sv
=== "Icon"
image = ...
detections = sv.Detections(...)
```python
import supervision as sv
corner_annotator = sv.BoxCornerAnnotator()
annotated_frame = corner_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
image = ...
detections = sv.Detections(...)
<div class="result" markdown>
icon_paths = ["<ICON_PATH>" for _ in detections]
![box-corner-annotator-example](https://media.roboflow.com/supervision-annotator-examples/box-corner-annotator-example-purple.png){ align=center width="800" }
icon_annotator = sv.IconAnnotator()
annotated_frame = icon_annotator.annotate(
scene=image.copy(),
detections=detections,
icon_path=icon_paths,
)
```
</div>
<div class="result" markdown>
=== "Circle"
![icon-annotator-example](https://media.roboflow.com/supervision-annotator-examples/icon-annotator-example.png){ align=center width="800" }
```python
import supervision as sv
</div>
image = ...
detections = sv.Detections(...)
<!-- === "Crop"
circle_annotator = sv.CircleAnnotator()
annotated_frame = circle_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
```python
import supervision as sv
<div class="result" markdown>
image = ...
detections = sv.Detections(...)
![circle-annotator-example](https://media.roboflow.com/supervision-annotator-examples/circle-annotator-example-purple.png){ align=center width="800" }
crop_annotator = sv.CropAnnotator()
annotated_frame = crop_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
</div>
<div class="result" markdown>
=== "Ellipse"
![crop-annotator-example](https://media.roboflow.com/supervision-annotator-examples/crop-annotator-example.png){ align=center width="800" }
```python
import supervision as sv
</div>
image = ...
detections = sv.Detections(...)
-->
ellipse_annotator = sv.EllipseAnnotator()
annotated_frame = ellipse_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
=== "Blur"
<div class="result" markdown>
```python
import supervision as sv
![ellipse-annotator-example](https://media.roboflow.com/supervision-annotator-examples/ellipse-annotator-example-purple.png){ align=center width="800" }
image = ...
detections = sv.Detections(...)
</div>
blur_annotator = sv.BlurAnnotator()
annotated_frame = (blur_annotator.annotate(scene=image.copy(), detections=detections),)
```
=== "Polygon"
<div class="result" markdown>
```python
import supervision as sv
![blur-annotator-example](https://media.roboflow.com/supervision-annotator-examples/blur-annotator-example-purple.png){ align=center width="800" }
image = ...
detections = sv.Detections(...)
</div>
polygon_annotator = sv.PolygonAnnotator()
annotated_frame = polygon_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
=== "Pixelate"
<div class="result" markdown>
```python
import supervision as sv
![polygon-annotator-example](https://media.roboflow.com/supervision-annotator-examples/polygon-annotator-example-purple.png){ align=center width="800" }
image = ...
detections = sv.Detections(...)
</div>
pixelate_annotator = sv.PixelateAnnotator()
annotated_frame = pixelate_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
=== "Shading"
<div class="result" markdown>
=== "Color"
![pixelate-annotator-example](https://media.roboflow.com/supervision-annotator-examples/pixelate-annotator-example-10.png){ align=center width="800" }
```python
import supervision as sv
</div>
image = ...
detections = sv.Detections(...)
=== "Trace"
color_annotator = sv.ColorAnnotator()
annotated_frame = color_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
```python
import supervision as sv
from ultralytics import YOLO
<div class="result" markdown>
model = YOLO("yolov8x.pt")
![box-mask-annotator-example](https://media.roboflow.com/supervision-annotator-examples/box-mask-annotator-example-purple.png){ align=center width="800" }
trace_annotator = sv.TraceAnnotator()
</div>
video_info = sv.VideoInfo.from_video_path(video_path="...")
frames_generator = sv.get_video_frames_generator(source_path="...")
tracker = sv.ByteTrack()
=== "Halo"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
halo_annotator = sv.HaloAnnotator()
annotated_frame = halo_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![halo-annotator-example](https://media.roboflow.com/supervision-annotator-examples/halo-annotator-example-purple.png){ align=center width="800" }
</div>
=== "Mask"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
mask_annotator = sv.MaskAnnotator()
annotated_frame = mask_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
!!! note
`MaskAnnotator` expects `detections.mask` to contain instance segmentation masks aligned to the image passed to `annotate`. For dense masks, provide a boolean array of shape `(N, H, W)` where `(H, W)` matches the image height and width (it also accepts `sv.CompactMask`). If your model returns framework-specific results, convert them to `sv.Detections` first, for example with `sv.Detections.from_ultralytics(...)` or `sv.Detections.from_inference(...)`.
<div class="result" markdown>
![mask-annotator-example](https://media.roboflow.com/supervision-annotator-examples/mask-annotator-example-purple.png){ align=center width="800" }
</div>
=== "Markers"
=== "Dot"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
dot_annotator = sv.DotAnnotator()
annotated_frame = dot_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![dot-annotator-example](https://media.roboflow.com/supervision-annotator-examples/dot-annotator-example-purple.png){ align=center width="800" }
</div>
=== "Triangle"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
triangle_annotator = sv.TriangleAnnotator()
annotated_frame = triangle_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![triangle-annotator-example](https://media.roboflow.com/supervision-annotator-examples/triangle-annotator-example.png){ align=center width="800" }
</div>
=== "Labels"
=== "Label"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
labels = [
f"{class_name} {confidence:.2f}"
for class_name, confidence in zip(
detections["class_name"],
detections.confidence,
with sv.VideoSink(target_path="...", video_info=video_info) as sink:
for frame in frames_generator:
result = model(frame)[0]
detections = sv.Detections.from_ultralytics(result)
detections = tracker.update_with_detections(detections)
annotated_frame = trace_annotator.annotate(
scene=frame.copy(),
detections=detections,
)
]
sink.write_frame(frame=annotated_frame)
```
label_annotator = sv.LabelAnnotator(text_position=sv.Position.CENTER)
annotated_frame = label_annotator.annotate(
scene=image.copy(), detections=detections, labels=labels
)
```
<div class="result" markdown>
<div class="result" markdown>
![trace-annotator-example](https://media.roboflow.com/supervision-annotator-examples/trace-annotator-example-purple.png){ align=center width="800" }
![label-annotator-example](https://media.roboflow.com/supervision-annotator-examples/label-annotator-example-purple.png){ align=center width="800" }
</div>
</div>
=== "HeatMap"
=== "RichLabel"
```python
import supervision as sv
from ultralytics import YOLO
```python
import supervision as sv
model = YOLO("yolov8x.pt")
image = ...
detections = sv.Detections(...)
heat_map_annotator = sv.HeatMapAnnotator()
labels = [
f"{class_name} {confidence:.2f}"
for class_name, confidence in zip(
detections["class_name"],
detections.confidence,
video_info = sv.VideoInfo.from_video_path(video_path="...")
frames_generator = sv.get_video_frames_generator(source_path="...")
with sv.VideoSink(target_path="...", video_info=video_info) as sink:
for frame in frames_generator:
result = model(frame)[0]
detections = sv.Detections.from_ultralytics(result)
annotated_frame = heat_map_annotator.annotate(
scene=frame.copy(),
detections=detections,
)
]
sink.write_frame(frame=annotated_frame)
```
rich_label_annotator = sv.RichLabelAnnotator(
font_path="TTF_FONT_PATH",
text_position=sv.Position.CENTER,
)
annotated_frame = rich_label_annotator.annotate(
scene=image.copy(),
detections=detections,
labels=labels,
)
```
<div class="result" markdown>
<div class="result" markdown>
![heat-map-annotator-example](https://media.roboflow.com/supervision-annotator-examples/heat-map-annotator-example-purple.png){ align=center width="800" }
![label-annotator-example](https://media.roboflow.com/supervision-annotator-examples/label-annotator-example-purple.png){ align=center width="800" }
</div>
</div>
=== "Background Color"
=== "Transformative"
```python
import supervision as sv
=== "Blur"
image = ...
detections = sv.Detections(...)
```python
import supervision as sv
background_overlay_annotator = sv.BackgroundOverlayAnnotator()
annotated_frame = background_overlay_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
image = ...
detections = sv.Detections(...)
<div class="result" markdown>
blur_annotator = sv.BlurAnnotator()
annotated_frame = blur_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
![background-overlay-annotator-example](https://media.roboflow.com/supervision-annotator-examples/background-color-annotator-example-purple.png){ align=center width="800" }
<div class="result" markdown>
</div>
![blur-annotator-example](https://media.roboflow.com/supervision-annotator-examples/blur-annotator-example-purple.png){ align=center width="800" }
=== "Comparison"
</div>
```python
import supervision as sv
=== "Pixelate"
image = ...
detections_1 = sv.Detections(...)
detections_2 = sv.Detections(...)
```python
import supervision as sv
comparison_annotator = sv.ComparisonAnnotator()
annotated_frame = comparison_annotator.annotate(
scene=image.copy(),
detections_1=detections_1,
detections_2=detections_2,
)
```
image = ...
detections = sv.Detections(...)
<div class="result" markdown>
pixelate_annotator = sv.PixelateAnnotator()
annotated_frame = pixelate_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
![comparison-annotator-example](https://media.roboflow.com/supervision-annotator-examples/comparison-annotator-example.png){ align=center width="800" }
<div class="result" markdown>
![pixelate-annotator-example](https://media.roboflow.com/supervision-annotator-examples/pixelate-annotator-example-10.png){ align=center width="800" }
</div>
<!-- === "Crop"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
crop_annotator = sv.CropAnnotator()
annotated_frame = crop_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![crop-annotator-example](https://media.roboflow.com/supervision-annotator-examples/crop-annotator-example.png){ align=center width="800" }
</div>
-->
=== "Tracking & Aggregation"
=== "Trace"
```python
import supervision as sv
from ultralytics import YOLO
model = YOLO("yolov8x.pt")
trace_annotator = sv.TraceAnnotator()
video_info = sv.VideoInfo.from_video_path(video_path="...")
frames_generator = sv.get_video_frames_generator(source_path="...")
tracker = sv.ByteTrack()
with sv.VideoSink(target_path="...", video_info=video_info) as sink:
for frame in frames_generator:
result = model(frame)[0]
detections = sv.Detections.from_ultralytics(result)
detections = tracker.update_with_detections(detections)
annotated_frame = trace_annotator.annotate(
scene=frame.copy(),
detections=detections,
)
sink.write_frame(frame=annotated_frame)
```
<div class="result" markdown>
![trace-annotator-example](https://media.roboflow.com/supervision-annotator-examples/trace-annotator-example-purple.png){ align=center width="800" }
</div>
=== "HeatMap"
```python
import supervision as sv
from ultralytics import YOLO
model = YOLO("yolov8x.pt")
heat_map_annotator = sv.HeatMapAnnotator()
video_info = sv.VideoInfo.from_video_path(video_path="...")
frames_generator = sv.get_video_frames_generator(source_path="...")
with sv.VideoSink(target_path="...", video_info=video_info) as sink:
for frame in frames_generator:
result = model(frame)[0]
detections = sv.Detections.from_ultralytics(result)
annotated_frame = heat_map_annotator.annotate(
scene=frame.copy(),
detections=detections,
)
sink.write_frame(frame=annotated_frame)
```
<div class="result" markdown>
![heat-map-annotator-example](https://media.roboflow.com/supervision-annotator-examples/heat-map-annotator-example-purple.png){ align=center width="800" }
</div>
=== "Others"
=== "PercentageBar"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
percentage_bar_annotator = sv.PercentageBarAnnotator()
annotated_frame = percentage_bar_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![percentage-bar-annotator-example](https://media.roboflow.com/supervision-annotator-examples/percentage-bar-annotator-example-purple.png){ align=center width="800" }
</div>
=== "Icon"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
icon_paths = ["<ICON_PATH>" for _ in detections]
icon_annotator = sv.IconAnnotator()
annotated_frame = icon_annotator.annotate(
scene=image.copy(),
detections=detections,
icon_path=icon_paths,
)
```
<div class="result" markdown>
![icon-annotator-example](https://media.roboflow.com/supervision-annotator-examples/icon-annotator-example.png){ align=center width="800" }
</div>
=== "Background Color"
```python
import supervision as sv
image = ...
detections = sv.Detections(...)
background_overlay_annotator = sv.BackgroundOverlayAnnotator()
annotated_frame = background_overlay_annotator.annotate(
scene=image.copy(),
detections=detections,
)
```
<div class="result" markdown>
![background-overlay-annotator-example](https://media.roboflow.com/supervision-annotator-examples/background-color-annotator-example-purple.png){ align=center width="800" }
</div>
=== "Comparison"
```python
import supervision as sv
image = ...
detections_1 = sv.Detections(...)
detections_2 = sv.Detections(...)
comparison_annotator = sv.ComparisonAnnotator()
annotated_frame = comparison_annotator.annotate(
scene=image.copy(),
detections_1=detections_1,
detections_2=detections_2,
)
```
<div class="result" markdown>
![comparison-annotator-example](https://media.roboflow.com/supervision-annotator-examples/comparison-annotator-example.png){ align=center width="800" }
</div>
</div>
<div class="md-typeset">
<h2>Try Supervision Annotators on your own image</h2>

View File

@ -4,13 +4,8 @@ comments: true
# Legacy Metrics
Starting with `0.23.0`, a new metrics module is being introduced to supervision. Metrics here are part of the legacy evaluation API and will be deprecated in the future.
Install the metrics extra before using this page's APIs:
```bash
pip install "supervision[metrics]"
```
Starting with `0.23.0`, a new metrics module is being introduced to supervision.
Metrics here are part of the legacy evaluation API and will be deprecated in the future.
<div class="md-typeset">
<h2><a href="#supervision.metrics.detection.ConfusionMatrix">ConfusionMatrix</a></h2>

View File

@ -4,51 +4,4 @@ comments: true
# InferenceSlicer
## GeoTIFF Datasets
Install the optional GeoTIFF dependencies before running this example:
```bash
pip install "supervision[geotiff]"
wget -O RGB.byte.tif https://raw.githubusercontent.com/rasterio/rasterio/main/tests/data/RGB.byte.tif
```
`InferenceSlicer` can read an open `rasterio` dataset window-by-window. This keeps large GeoTIFFs out of memory while passing each tile to the callback as an `(H, W, C)` NumPy array.
```python
import numpy as np
import rasterio
import supervision as sv
def callback(tile: np.ndarray) -> sv.Detections:
h, w = tile.shape[:2]
return sv.Detections(
xyxy=np.array([[w * 0.25, h * 0.25, w * 0.75, h * 0.75]], dtype=float),
confidence=np.array([0.9]),
class_id=np.array([0]),
)
slicer = sv.InferenceSlicer(
callback=callback,
slice_wh=(256, 256),
overlap_wh=(64, 64),
overlap_filter=sv.OverlapFilter.NONE,
)
with rasterio.open("RGB.byte.tif") as dataset:
detections = slicer(dataset)
print(len(detections))
```
GeoTIFF inputs must use a projected coordinate reference system. Reproject geographic rasters before passing them to `InferenceSlicer`.
<div class="md-typeset">
<h2><a href="#supervision.detection.tools.inference_slicer.WindowedRasterDataset">WindowedRasterDataset</a></h2>
</div>
:::supervision.detection.tools.inference_slicer.WindowedRasterDataset
:::supervision.detection.tools.inference_slicer.InferenceSlicer

View File

@ -33,9 +33,3 @@ comments: true
</div>
:::supervision.detection.utils.boxes.denormalize_boxes
<div class="md-typeset">
<h2><a href="#supervision.detection.utils.boxes.xyxyxyxy_to_xyxy">xyxyxyxy_to_xyxy</a></h2>
</div>
:::supervision.detection.utils.boxes.xyxyxyxy_to_xyxy

View File

@ -76,9 +76,3 @@ status: new
</div>
:::supervision.detection.utils.converters.mask_to_rle
<div class="md-typeset">
<h2><a href="#supervision.detection.utils.converters.is_compressed_rle">is_compressed_rle</a></h2>
</div>
:::supervision.detection.utils.converters.is_compressed_rle

View File

@ -52,24 +52,12 @@ comments: true
:::supervision.detection.utils.iou_and_nms.box_non_max_suppression
<div class="md-typeset">
<h2><a href="#supervision.detection.utils.iou_and_nms.box_soft_non_max_suppression">box_soft_non_max_suppression</a></h2>
</div>
:::supervision.detection.utils.iou_and_nms.box_soft_non_max_suppression
<div class="md-typeset">
<h2><a href="#supervision.detection.utils.iou_and_nms.mask_non_max_suppression">mask_non_max_suppression</a></h2>
</div>
:::supervision.detection.utils.iou_and_nms.mask_non_max_suppression
<div class="md-typeset">
<h2><a href="#supervision.detection.utils.iou_and_nms.mask_soft_non_max_suppression">mask_soft_non_max_suppression</a></h2>
</div>
:::supervision.detection.utils.iou_and_nms.mask_soft_non_max_suppression
<div class="md-typeset">
<h2><a href="#supervision.detection.utils.iou_and_nms.box_non_max_merge">box_non_max_merge</a></h2>
</div>
@ -81,15 +69,3 @@ comments: true
</div>
:::supervision.detection.utils.iou_and_nms.mask_non_max_merge
<div class="md-typeset">
<h2><a href="#supervision.detection.utils.iou_and_nms.oriented_box_non_max_suppression">oriented_box_non_max_suppression</a></h2>
</div>
:::supervision.detection.utils.iou_and_nms.oriented_box_non_max_suppression
<div class="md-typeset">
<h2><a href="#supervision.detection.utils.iou_and_nms.oriented_box_non_max_merge">oriented_box_non_max_merge</a></h2>
</div>
:::supervision.detection.utils.iou_and_nms.oriented_box_non_max_merge

View File

@ -5,12 +5,6 @@ status: new
# Masks Utils
<div class="md-typeset">
<h2><a href="#supervision.detection.utils.masks.mask_to_roi">mask_to_roi</a></h2>
</div>
:::supervision.detection.utils.masks.mask_to_roi
<div class="md-typeset">
<h2><a href="#supervision.detection.utils.masks.move_masks">move_masks</a></h2>
</div>
@ -34,9 +28,3 @@ status: new
</div>
:::supervision.detection.utils.masks.filter_segments_by_distance
<div class="md-typeset">
<h2><a href="#supervision.detection.utils.masks.calculate_masks_centroids">calculate_masks_centroids</a></h2>
</div>
:::supervision.detection.utils.masks.calculate_masks_centroids

View File

@ -3,25 +3,7 @@ comments: true
status: new
---
# VLM Utils
<div class="md-typeset">
<h2><a href="#supervision.detection.vlm.VLM">VLM</a></h2>
</div>
:::supervision.detection.vlm.VLM
<div class="md-typeset">
<h2><a href="#supervision.detection.vlm.LMM">LMM</a></h2>
</div>
:::supervision.detection.vlm.LMM
<div class="md-typeset">
<h2><a href="#supervision.detection.vlm.validate_vlm_parameters">validate_vlm_parameters</a></h2>
</div>
:::supervision.detection.vlm.validate_vlm_parameters
# VLMs Utils
<div class="md-typeset">
<h2><a href="#supervision.detection.utils.vlms.edit_distance">edit_distance</a></h2>

View File

@ -25,8 +25,6 @@ pip install "supervision[metrics]"
Sample asset utilities are part of the base package under `supervision.assets`.
Supervision does not install OpenCV. Its image, drawing, and file-video APIs use the included fallback when `cv2` is unavailable, and automatically use a compatible `cv2` already present in your environment. See the [OpenCV migration guide](how_to/opencv_migration.md) when upgrading an existing environment or choosing an OpenCV wheel yourself.
## Which object detection models work with Supervision?
Supervision is model agnostic. `sv.Detections` includes converters for Ultralytics YOLO, Roboflow Inference, Hugging Face Transformers outputs, SAM, Detectron2, MMDetection, YOLO-NAS, PaddleDet, NCNN, Azure AI Vision, and VLM parsers including Florence-2, PaliGemma, Qwen VL, Gemini, DeepSeek VL 2, and Moondream. Keypoint outputs have separate `sv.KeyPoints` converters, including MediaPipe.
@ -37,11 +35,11 @@ You can annotate images and video, filter detections, track objects, count objec
## How do I track objects across video frames?
Assign persistent tracker IDs before visualization. The built-in `sv.ByteTrack` wrapper accepts `Detections` through `update_with_detections()`, but it is deprecated in favor of `ByteTrackTracker` from the external `trackers` package. After tracking, combine the output with annotators such as `sv.TraceAnnotator`, `sv.BoxAnnotator`, and `sv.LabelAnnotator`.
Assign persistent tracker IDs before visualization. The built-in `sv.ByteTrack` wrapper accepts `Detections` through `update_with_detections()`. After tracking, combine the output with annotators such as `sv.TraceAnnotator`, `sv.BoxAnnotator`, and `sv.LabelAnnotator`.
## What dataset formats does Supervision support?
For detection datasets, Supervision supports YOLO, COCO JSON, Pascal VOC, CreateML, and LabelMe. Use `DetectionDataset.from_yolo()`, `DetectionDataset.from_coco()`, `DetectionDataset.from_pascal_voc()`, `DetectionDataset.from_createml()`, or `DetectionDataset.from_labelme()` to load datasets, and the matching `as_*` methods to export them.
For detection datasets, Supervision supports YOLO, COCO JSON, and Pascal VOC. Use `DetectionDataset.from_yolo()`, `DetectionDataset.from_coco()`, or `DetectionDataset.from_pascal_voc()` to load datasets, and the matching `as_*` methods to export them.
## How do I count objects in a zone?
@ -49,33 +47,12 @@ Use `sv.PolygonZone` for arbitrary polygon regions and `sv.LineZone` for line-cr
## How do I benchmark a model?
Install `supervision[metrics]`, then use `supervision.metrics.mean_average_precision.MeanAveragePrecision` for mAP and `sv.ConfusionMatrix` for confusion matrices. Accumulate predictions and ground-truth `Detections`, then call `compute()` to calculate metrics.
Use `supervision.metrics.mean_average_precision.MeanAveragePrecision` for mAP and `sv.ConfusionMatrix` for confusion matrices. Accumulate predictions and ground-truth `Detections`, then call `compute()` to calculate metrics.
## Is Supervision free to use?
Yes. Supervision is free and open source under the MIT license.
## How do I process frames from a webcam with supervision?
Supervision does not support live camera capture. Manage the capture device yourself with `cv2.VideoCapture`, which works regardless of which OpenCV wheel (`opencv-python` or `opencv-python-headless`) is installed, and pass individual frames to supervision annotators:
```python
import cv2 # requires: pip install opencv-python (or opencv-python-headless)
import supervision as sv
cap = cv2.VideoCapture(0)
annotator = sv.BoxAnnotator()
while True:
ret, frame = cap.read()
if not ret:
break
# run your detector, then annotate:
# annotated = annotator.annotate(frame, detections)
cap.release()
```
## Where is the source code?
The source code is available at [github.com/roboflow/supervision](https://github.com/roboflow/supervision).

View File

@ -42,9 +42,14 @@ We'll use the following libraries:
- `supervision` to evaluate the model results
```bash
pip install roboflow inference "supervision[metrics]"
pip install roboflow supervision
pip install git+https://github.com/roboflow/inference.git@linas/allow-latest-rc-supervision
```
!!! info
We're updating `inference` at the moment. Please install it as shown above.
Here's how you can download a dataset:
```python
@ -125,7 +130,8 @@ Evaluating your model requires careful selection of the dataset. Which images sh
- **Validation Set**: This is the set of images used to validate the model during training. Every Nth training epoch, the model is evaluated on the validation set. Often the training is stopped once the validation loss stops improving. Therefore, even while the images aren't used to train the model, it still indirectly influences the training outcome.
- **Test Set**: This is the set of images kept aside for model testing. It is exactly the set you should use for benchmarking. If the dataset was split correctly, none of these images would be shown to the model during training.
Therefore, an unrelated dataset or the `test` set is the best choice for benchmarking. Several other problems may arise:
Therefore, an unrelated dataset or the `test` set is the best choice for benchmarking.
Several other problems may arise:
- **Extra Classes**: An unrelated dataset may contain additional classes which you may need to [filter out](https://supervision.roboflow.com/how_to/filter_detections/#by-set-of-classes) before computing metrics.
- **Class Mismatch**: In an unrelated dataset, the class names or IDs may be different to what your model produces, you'll need to remap them, which is [shown in this guide](#running-a-model).
@ -139,7 +145,8 @@ At this stage, you should have:
- A dataset of labeled images to evaluate the model.
- A model prepared for benchmarking.
With these ready, we can now run the model and obtain predictions. We'll use `supervision` to create a dataset iterator, and then run the model on each image.
With these ready, we can now run the model and obtain predictions.
We'll use `supervision` to create a dataset iterator, and then run the model on each image.
=== "Inference"
@ -191,7 +198,8 @@ With these ready, we can now run the model and obtain predictions. We'll use `su
## Remapping classes
Did you notice an issue in the above logic? Since we're using an unrelated dataset, the class names and IDs may be different from what the model was trained on.
Did you notice an issue in the above logic?
Since we're using an unrelated dataset, the class names and IDs may be different from what the model was trained on.
We need to remap them to match the dataset classes. Here's how to do it:
@ -251,7 +259,8 @@ Let's also remove the predictions that are not in the dataset classes.
Dataset class names and IDs can be found in the `data.yaml` file, or by printing `dataset.classes`.
Each model will have a different class mapping, so make sure to check the model's documentation. In this case, the model was trained on the COCO dataset, with a class configuration found [here](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/cfg/datasets/coco8.yaml).
Each model will have a different class mapping, so make sure to check the model's documentation. In this case, the model was trained on the COCO dataset, with a class
configuration found [here](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/cfg/datasets/coco8.yaml).
```python
import supervision as sv
@ -284,7 +293,8 @@ Let's also remove the predictions that are not in the dataset classes.
## Visualizing Predictions
The first step in evaluating your models performance is to visualize its predictions. This gives an intuitive sense of how well your model is detecting objects and where it might be failing.
The first step in evaluating your models performance is to visualize its predictions.
This gives an intuitive sense of how well your model is detecting objects and where it might be failing.
```python
import supervision as sv
@ -324,20 +334,6 @@ Here, predictions in purple are targets (ground truth), and predictions in teal
See [annotator documentation](https://supervision.roboflow.com/latest/detection/annotators/) for even more options.
## Visual Benchmarking
To inspect where a model succeeds and fails, pass `save_directory_path` to `sv.ConfusionMatrix.benchmark(...)`. For every dataset image it writes a 2x2 result grid — `Ground Truth`, `True Positives`, `False Positives`, and `False Negatives` panels — directly into that directory, reusing the original image filenames. This makes it easy to skim through per-image outcomes alongside the aggregate confusion matrix.
```python
import supervision as sv
confusion_matrix = sv.ConfusionMatrix.benchmark(
dataset=test_set,
callback=callback,
save_directory_path="./results",
)
```
## Benchmarking Metrics
With multiple models, fine details matter. Visual inspection may not be enough. `supervision` provides a collection of metrics that help obtain precise numerical results of model performance.
@ -471,7 +467,7 @@ Yes, if you want to evaluate their bounding boxes. Convert model outputs to `Det
### What is a ConfusionMatrix and how do I use it?
`sv.ConfusionMatrix` visualizes true positives, false positives, and false negatives per class. Create one with `sv.ConfusionMatrix.from_detections(predictions=predictions, targets=targets, classes=classes, conf_threshold=0.5, iou_threshold=0.5)`, then call `confusion_matrix.plot()` to render a heatmap. If you want per-image validation visualizations saved to disk, pass `save_directory_path="./results"` to `sv.ConfusionMatrix.benchmark(...)`; it will write 2x2 result grids directly into that directory using the original image filenames, with `Ground Truth`, `True Positives`, `False Positives`, and `False Negatives` panels.
`sv.ConfusionMatrix` visualizes true positives, false positives, and false negatives per class. Create one with `sv.ConfusionMatrix.from_detections(predictions=predictions, targets=targets, classes=classes, conf_threshold=0.5, iou_threshold=0.5)`, then call `metric.plot()` to render a heatmap.
## Author

View File

@ -24,7 +24,7 @@ download_assets(VideoAssets.VEHICLES_2)
First, we need to initialize a model. Let's use a YOLOv8 model with the default COCO checkpoint. We also need to load a video on which to run inference.
Create a YOLO model instance and download the source video. The model will process each frame during inference. A shared color palette ensures consistent zone coloring throughout the output video.
Create a YOLO model instance and load the source video using supervision's `VideoInfo` helper. The model will process each frame during inference, while `VideoInfo` extracts resolution and frame-rate metadata needed by the polygon zone annotator. A shared color palette ensures consistent zone coloring throughout the output video.
```python
import numpy as np
@ -32,13 +32,13 @@ import supervision as sv
import cv2
from ultralytics import YOLO
from supervision.assets import VideoAssets, download_assets
model = YOLO("yolov8s.pt")
VIDEO = download_assets(VideoAssets.VEHICLES_2)
VIDEO = str(VideoAssets.VEHICLES_2)
colors = sv.ColorPalette.DEFAULT
colors = sv.ColorPalette.default()
video_info = sv.VideoInfo.from_video_path(VIDEO)
```
## Calculate Coordinates
@ -80,7 +80,10 @@ With the coordinates of the zones to draw ready, we can set up our zones:
Instantiate a `PolygonZone` for each polygon array, pairing it with a `PolygonZoneAnnotator` for visual overlay and a `BoxAnnotator` for drawing detection boxes. Each zone will later trigger on incoming detections to determine which objects fall inside its boundaries, enabling per-zone counting in the inference callback.
```python
zones = [sv.PolygonZone(polygon=polygon) for polygon in polygons]
zones = [
sv.PolygonZone(polygon=polygon, frame_resolution_wh=video_info.resolution_wh)
for polygon in polygons
]
zone_annotators = [
sv.PolygonZoneAnnotator(
zone=zone,
@ -95,6 +98,8 @@ box_annotators = [
sv.BoxAnnotator(
color=colors.by_idx(index),
thickness=4,
text_thickness=4,
text_scale=2,
)
for index in range(len(polygons))
]
@ -116,7 +121,9 @@ def process_frame(frame: np.ndarray, i) -> np.ndarray:
):
mask = zone.trigger(detections=detections)
detections_filtered = detections[mask]
frame = box_annotator.annotate(scene=frame, detections=detections_filtered)
frame = box_annotator.annotate(
scene=frame, detections=detections_filtered, skip_label=True
)
frame = zone_annotator.annotate(scene=frame)
return frame

View File

@ -13,25 +13,20 @@ date_modified: 2026-04-22
# Detect and Annotate
!!! tip "Sample Image"
Don't have an image? Download the one used in this tutorial:
```bash
wget https://media.roboflow.com/notebooks/examples/dog.jpeg
```
```
Then replace `<SOURCE_IMAGE_PATH>` with `"dog.jpeg"`.
```
Supervision provides a seamless process for annotating predictions generated by various object detection and segmentation models. This guide shows how to perform inference with the [Inference](https://github.com/roboflow/inference), [Ultralytics](https://github.com/ultralytics/ultralytics) or [Transformers](https://github.com/huggingface/transformers) packages. Following this, you'll learn how to import these predictions into Supervision and use them to annotate source image.
Supervision provides a seamless process for annotating predictions generated by various
object detection and segmentation models. This guide shows how to perform inference
with the [Inference](https://github.com/roboflow/inference),
[Ultralytics](https://github.com/ultralytics/ultralytics) or
[Transformers](https://github.com/huggingface/transformers) packages. Following this,
you'll learn how to import these predictions into Supervision and use them to annotate
source image.
![basic-annotation](https://media.roboflow.com/supervision_detect_and_annotate_example_1.png)
## Run Detection
First, you'll need to obtain predictions from your object detection or segmentation model.
First, you'll need to obtain predictions from your object detection or segmentation
model.
To run inference, initialize your chosen model and pass the source image to its predict or infer method. Supervision supports Roboflow Inference, Ultralytics YOLO, and Hugging Face Transformers -- select the tab matching your framework. The result is a framework-specific object you will convert to a `Detections` instance in the next step.
@ -42,7 +37,7 @@ To run inference, initialize your chosen model and pass the source image to its
from inference import get_model
model = get_model(model_id="yolov8n-640")
image = cv2.imread("dog.jpeg")
image = cv2.imread("<SOURCE_IMAGE_PATH>")
results = model.infer(image)[0]
```
@ -53,7 +48,7 @@ To run inference, initialize your chosen model and pass the source image to its
from ultralytics import YOLO
model = YOLO("yolov8n.pt")
image = cv2.imread("dog.jpeg")
image = cv2.imread("<SOURCE_IMAGE_PATH>")
results = model(image)[0]
```
@ -67,7 +62,7 @@ To run inference, initialize your chosen model and pass the source image to its
processor = DetrImageProcessor.from_pretrained("facebook/detr-resnet-50")
model = DetrForObjectDetection.from_pretrained("facebook/detr-resnet-50")
image = Image.open("dog.jpeg")
image = Image.open("<SOURCE_IMAGE_PATH>")
inputs = processor(images=image, return_tensors="pt")
with torch.no_grad():
@ -96,7 +91,7 @@ Each supported framework has a dedicated class method on `sv.Detections` that co
from inference import get_model
model = get_model(model_id="yolov8n-640")
image = cv2.imread("dog.jpeg")
image = cv2.imread("<SOURCE_IMAGE_PATH>")
results = model.infer(image)[0]
detections = sv.Detections.from_inference(results)
```
@ -111,7 +106,7 @@ Each supported framework has a dedicated class method on `sv.Detections` that co
from ultralytics import YOLO
model = YOLO("yolov8n.pt")
image = cv2.imread("dog.jpeg")
image = cv2.imread("<SOURCE_IMAGE_PATH>")
results = model(image)[0]
detections = sv.Detections.from_ultralytics(results)
```
@ -129,7 +124,7 @@ Each supported framework has a dedicated class method on `sv.Detections` that co
processor = DetrImageProcessor.from_pretrained("facebook/detr-resnet-50")
model = DetrForObjectDetection.from_pretrained("facebook/detr-resnet-50")
image = Image.open("dog.jpeg")
image = Image.open("<SOURCE_IMAGE_PATH>")
inputs = processor(images=image, return_tensors="pt")
with torch.no_grad():
@ -166,7 +161,7 @@ To draw bounding boxes and class labels on your image, create a `BoxAnnotator` a
from inference import get_model
model = get_model(model_id="yolov8n-640")
image = cv2.imread("dog.jpeg")
image = cv2.imread("<SOURCE_IMAGE_PATH>")
results = model.infer(image)[0]
detections = sv.Detections.from_inference(results)
@ -187,7 +182,7 @@ To draw bounding boxes and class labels on your image, create a `BoxAnnotator` a
from ultralytics import YOLO
model = YOLO("yolov8n.pt")
image = cv2.imread("dog.jpeg")
image = cv2.imread("<SOURCE_IMAGE_PATH>")
results = model(image)[0]
detections = sv.Detections.from_ultralytics(results)
@ -211,7 +206,7 @@ To draw bounding boxes and class labels on your image, create a `BoxAnnotator` a
processor = DetrImageProcessor.from_pretrained("facebook/detr-resnet-50")
model = DetrForObjectDetection.from_pretrained("facebook/detr-resnet-50")
image = Image.open("dog.jpeg")
image = Image.open("<SOURCE_IMAGE_PATH>")
inputs = processor(images=image, return_tensors="pt")
with torch.no_grad():
@ -238,7 +233,9 @@ To draw bounding boxes and class labels on your image, create a `BoxAnnotator` a
## Display Custom Labels
By default, [`sv.LabelAnnotator`](https://supervision.roboflow.com/latest/detection/annotators/#supervision.annotators.core.LabelAnnotator) will label each detection with its `class_name` (if possible) or `class_id`. You can override this behavior by passing a list of custom `labels` to the `annotate` method.
By default, [`sv.LabelAnnotator`](https://supervision.roboflow.com/latest/detection/annotators/#supervision.annotators.core.LabelAnnotator)
will label each detection with its `class_name` (if possible) or `class_id`. You can
override this behavior by passing a list of custom `labels` to the `annotate` method.
=== "Inference"
@ -248,7 +245,7 @@ By default, [`sv.LabelAnnotator`](https://supervision.roboflow.com/latest/detect
from inference import get_model
model = get_model(model_id="yolov8n-640")
image = cv2.imread("dog.jpeg")
image = cv2.imread("<SOURCE_IMAGE_PATH>")
results = model.infer(image)[0]
detections = sv.Detections.from_inference(results)
@ -275,7 +272,7 @@ By default, [`sv.LabelAnnotator`](https://supervision.roboflow.com/latest/detect
from ultralytics import YOLO
model = YOLO("yolov8n.pt")
image = cv2.imread("dog.jpeg")
image = cv2.imread("<SOURCE_IMAGE_PATH>")
results = model(image)[0]
detections = sv.Detections.from_ultralytics(results)
@ -305,7 +302,7 @@ By default, [`sv.LabelAnnotator`](https://supervision.roboflow.com/latest/detect
processor = DetrImageProcessor.from_pretrained("facebook/detr-resnet-50")
model = DetrForObjectDetection.from_pretrained("facebook/detr-resnet-50")
image = Image.open("dog.jpeg")
image = Image.open("<SOURCE_IMAGE_PATH>")
inputs = processor(images=image, return_tensors="pt")
with torch.no_grad():
@ -338,7 +335,11 @@ By default, [`sv.LabelAnnotator`](https://supervision.roboflow.com/latest/detect
## Annotate Image with Segmentations
If you are running the segmentation model [`sv.MaskAnnotator`](https://supervision.roboflow.com/latest/detection/annotators/#supervision.annotators.core.MaskAnnotator) is a drop-in replacement for [`sv.BoxAnnotator`](https://supervision.roboflow.com/latest/detection/annotators/#supervision.annotators.core.BoxAnnotator) that will allow you to draw masks instead of boxes.
If you are running the segmentation model
[`sv.MaskAnnotator`](https://supervision.roboflow.com/latest/detection/annotators/#supervision.annotators.core.MaskAnnotator)
is a drop-in replacement for
[`sv.BoxAnnotator`](https://supervision.roboflow.com/latest/detection/annotators/#supervision.annotators.core.BoxAnnotator)
that will allow you to draw masks instead of boxes.
=== "Inference"
@ -348,7 +349,7 @@ If you are running the segmentation model [`sv.MaskAnnotator`](https://supervisi
from inference import get_model
model = get_model(model_id="yolov8n-seg-640")
image = cv2.imread("dog.jpeg")
image = cv2.imread("<SOURCE_IMAGE_PATH>")
results = model.infer(image)[0]
detections = sv.Detections.from_inference(results)
@ -363,7 +364,6 @@ If you are running the segmentation model [`sv.MaskAnnotator`](https://supervisi
scene=annotated_image,
detections=detections,
)
sv.plot_image(annotated_image)
```
=== "Ultralytics"
@ -374,7 +374,7 @@ If you are running the segmentation model [`sv.MaskAnnotator`](https://supervisi
from ultralytics import YOLO
model = YOLO("yolov8n-seg.pt")
image = cv2.imread("dog.jpeg")
image = cv2.imread("<SOURCE_IMAGE_PATH>")
results = model(image)[0]
detections = sv.Detections.from_ultralytics(results)
@ -402,7 +402,7 @@ If you are running the segmentation model [`sv.MaskAnnotator`](https://supervisi
processor = DetrImageProcessor.from_pretrained("facebook/detr-resnet-50-panoptic")
model = DetrForSegmentation.from_pretrained("facebook/detr-resnet-50-panoptic")
image = Image.open("dog.jpeg")
image = Image.open("<SOURCE_IMAGE_PATH>")
inputs = processor(images=image, return_tensors="pt")
with torch.no_grad():

View File

@ -10,7 +10,11 @@ date_modified: 2026-04-22
# Detect Small Objects
This guide shows how to detect small objects with the [Inference](https://github.com/roboflow/inference), [Ultralytics](https://github.com/ultralytics/ultralytics) or [Transformers](https://github.com/huggingface/transformers) packages using [`InferenceSlicer`](https://supervision.roboflow.com/latest/detection/tools/inference_slicer/#supervision.detection.tools.inference_slicer.InferenceSlicer).
This guide shows how to detect small objects
with the [Inference](https://github.com/roboflow/inference),
[Ultralytics](https://github.com/ultralytics/ultralytics) or
[Transformers](https://github.com/huggingface/transformers) packages using
[`InferenceSlicer`](https://supervision.roboflow.com/latest/detection/tools/inference_slicer/#supervision.detection.tools.inference_slicer.InferenceSlicer).
<video controls>
<source src="https://media.roboflow.com/supervision_detect_small_objects_example.mp4" type="video/mp4">
@ -18,7 +22,8 @@ This guide shows how to detect small objects with the [Inference](https://github
## Baseline Detection
Small object detection in high-resolution images presents challenges due to the objects' size relative to the image resolution.
Small object detection in high-resolution images presents challenges due to the objects'
size relative to the image resolution.
Running a standard detection model on the full image establishes a baseline for comparison. Load your chosen model, pass the image through it, and convert the results into a `Detections` object. This baseline reveals how many small objects the model misses at native resolution, motivating the sliced inference approach shown later.
@ -111,7 +116,9 @@ Running a standard detection model on the full image establishes a baseline for
## Input Resolution
Modifying the input resolution of images before detection can enhance small object identification at the cost of processing speed and increased memory usage. This method is less effective for ultra-high-resolution images (4K and above).
Modifying the input resolution of images before detection can enhance small object
identification at the cost of processing speed and increased memory usage. This method
is less effective for ultra-high-resolution images (4K and above).
=== "Inference"
@ -159,7 +166,9 @@ Modifying the input resolution of images before detection can enhance small obje
## Inference Slicer
[`InferenceSlicer`](https://supervision.roboflow.com/latest/detection/tools/inference_slicer/#supervision.detection.tools.inference_slicer.InferenceSlicer) processes high-resolution images by dividing them into smaller segments, detecting objects within each, and aggregating the results.
[`InferenceSlicer`](https://supervision.roboflow.com/latest/detection/tools/inference_slicer/#supervision.detection.tools.inference_slicer.InferenceSlicer)
processes high-resolution images by dividing them into smaller segments, detecting
objects within each, and aggregating the results.
<video controls>
<source src="https://media.roboflow.com/supervision_detect_small_objects_example_2.mp4" type="video/mp4">

View File

@ -10,7 +10,11 @@ date_modified: 2026-04-22
# Filter Detections
The advanced filtering capabilities of the `Detections` class offer users a versatile and efficient way to narrow down and refine object detections. This section outlines various filtering methods, including filtering by specific class or a set of classes, confidence, object area, bounding box area, relative area, box dimensions, and designated zones. Each method is demonstrated with concise code examples to provide users with a clear understanding of how to implement the filters in their applications.
The advanced filtering capabilities of the `Detections` class offer users a versatile and efficient way to narrow down
and refine object detections. This section outlines various filtering methods, including filtering by specific class
or a set of classes, confidence, object area, bounding box area, relative area, box dimensions, and designated zones.
Each method is demonstrated with concise code examples to provide users with a clear understanding of how to implement
the filters in their applications.
### by specific class
@ -120,7 +124,8 @@ Allows you to select detections with specific confidence value, for example high
### by area
Allows you to select detections based on their size. We define the area as the number of pixels occupied by the detection in the image. In the example below, we have sifted out the detections that are too small.
Allows you to select detections based on their size. We define the area as the number of pixels occupied by the
detection in the image. In the example below, we have sifted out the detections that are too small.
=== "After"
@ -154,7 +159,10 @@ Allows you to select detections based on their size. We define the area as the n
### by relative area
Allows you to select detections based on their size in relation to the size of whole image. Sometimes the concept of detection size changes depending on the image. Detection occupying 10000 square px can be large on a 1280x720 image but small on a 3840x2160 image. In such cases, we can filter out detections based on the percentage of the image area occupied by them. In the example below, we remove too large detections.
Allows you to select detections based on their size in relation to the size of whole image. Sometimes the concept of
detection size changes depending on the image. Detection occupying 10000 square px can be large on a 1280x720 image
but small on a 3840x2160 image. In such cases, we can filter out detections based on the percentage of the image area
occupied by them. In the example below, we remove too large detections.
=== "After"
@ -196,7 +204,9 @@ Allows you to select detections based on their size in relation to the size of w
### by box dimensions
Allows you to select detections based on their dimensions. The size of the bounding box, as well as its coordinates, can be criteria for rejecting detection. Implementing such filtering requires a bit of custom code but is relatively simple and fast.
Allows you to select detections based on their dimensions. The size of the bounding box, as well as its coordinates,
can be criteria for rejecting detection. Implementing such filtering requires a bit of custom code but is relatively
simple and fast.
=== "After"
@ -234,7 +244,8 @@ Allows you to select detections based on their dimensions. The size of the bound
### by `PolygonZone`
Allows you to use `Detections` in combination with `PolygonZone` to weed out bounding boxes that are in and out of the zone. In the example below you can see how to filter out all detections located in the lower part of the image.
Allows you to use `Detections` in combination with `PolygonZone` to weed out bounding boxes that are in and out of the
zone. In the example below you can see how to filter out all detections located in the lower part of the image.
=== "After"
@ -320,7 +331,7 @@ Use NumPy-style boolean indexing: `detections[detections.class_id == 0]` for cla
### How do I filter by bounding box area?
`detections[detections.area > 1000]` filters by pixel area. If masks are present, `detections.area` uses mask area; otherwise, if oriented-box coordinates are present, it uses oriented polygon area; all remaining detections use bounding box area from `xyxy`. Use `detections.box_area` when you specifically need axis-aligned bounding box area.
`detections[detections.area > 1000]` filters by pixel area. If masks are present, `detections.area` uses mask area; otherwise it uses bounding box area from `xyxy`. Use `detections.box_area` when you specifically need bounding box area.
### Can I filter by box aspect ratio or dimensions?

View File

@ -1,63 +0,0 @@
---
comments: true
description: Migrate Supervision installations after OpenCV becomes an ambient optional backend: use the included fallback by default or select one compatible OpenCV wheel for your application.
date_modified: 2026-07-17
---
# Migrate to Supervision Without an OpenCV Dependency
Supervision no longer installs OpenCV or offers an OpenCV extra. A standard installation includes the NumPy, Pillow, SciPy, and PyAV fallback needed by Supervision's image, drawing, and file-video APIs. When a compatible `cv2` is already installed, Supervision selects it once when the process imports the package.
## Keep the default fallback
Install Supervision normally when your application does not otherwise require OpenCV:
```bash
pip install supervision
```
The fallback keeps Supervision's documented APIs operational. Some text and anti-aliased drawing pixels can differ from OpenCV, so use the same backend while validating image-level baselines.
## Prefer OpenCV behavior
Install exactly one OpenCV wheel family when your application relies on OpenCV outside Supervision or needs its native behavior:
```bash
# Servers and containers without OpenCV GUI modules
pip install opencv-python-headless supervision
# Desktop applications that need OpenCV GUI modules
pip install opencv-python supervision
```
Do not install both `opencv-python` and `opencv-python-headless`. If another dependency, such as a model runtime, already provides a compatible `cv2`, keep that installation instead of adding a second wheel family.
## Verify the selected backend
Backend selection happens at import time and lasts for the process lifetime. Run this command in a fresh Python process after changing dependencies:
```bash
python -c "from supervision import _cv2; print(_cv2.BACKEND_NAME)"
```
It prints `fallback` without OpenCV and the OpenCV backend name when `cv2` is available. `_cv2` is private; use this command only as an installation diagnostic, not as application API.
## Capture webcams yourself
Supervision's video helpers support file paths through either backend. Live camera capture remains application-owned, so install your chosen OpenCV wheel if you use `cv2.VideoCapture(0)`:
```python
import cv2
import supervision as sv
capture = cv2.VideoCapture(0)
annotator = sv.BoxAnnotator()
```
## Roll back an upgrade
If a downstream image baseline requires the pre-migration package behavior, pin Supervision below the first release that removes the OpenCV dependency, then plan a backend-specific migration separately:
```bash
pip install "supervision<0.30.0"
```

View File

@ -1,24 +1,34 @@
---
comments: true
description: Load, split, merge, and convert computer vision datasets between YOLO, COCO, Pascal VOC, CreateML, and LabelMe formats using supervision's DetectionDataset.
description: Load, split, merge, and convert computer vision datasets between YOLO, COCO, and Pascal VOC formats using supervision's DetectionDataset.
authors:
- name: Piotr Skalski
role: Computer Vision Engineer, Roboflow
github: https://github.com/SkalskiP
date_modified: 2026-06-25
date_modified: 2026-04-22
---
With Supervision, you can load and manipulate classification, object detection, and segmentation datasets. This tutorial will walk you through how to load, split, merge, visualize, and augment datasets in Supervision.
With Supervision, you can load and manipulate classification, object detection, and
segmentation datasets. This tutorial will walk you through how to load, split, merge,
visualize, and augment datasets in Supervision.
## Download Dataset
In this tutorial, we will use a dataset from [Roboflow Universe](https://universe.roboflow.com/), a public repository of thousands of computer vision datasets. If you already have your dataset in [COCO](https://roboflow.com/formats/coco-json), [YOLO](https://roboflow.com/formats/yolov8-pytorch-txt), [Pascal VOC](https://roboflow.com/formats/pascal-voc-xml), [CreateML](https://roboflow.com/formats/createml-json), or [LabelMe](https://roboflow.com/formats/labelme-json) format, you can skip this section.
In this tutorial, we will use a dataset from
[Roboflow Universe](https://universe.roboflow.com/), a public repository of
thousands of computer vision datasets. If you already have your dataset in
[COCO](https://roboflow.com/formats/coco-json),
[YOLO](https://roboflow.com/formats/yolov8-pytorch-txt),
or [Pascal VOC](https://roboflow.com/formats/pascal-voc-xml) format, you can skip this
section.
```bash
pip install roboflow
```
Next, log into your Roboflow account and download the dataset of your choice. The following snippets show common COCO, YOLO, Pascal VOC, and CreateML exports; LabelMe datasets can also be loaded directly from per-image JSON files in the next section. You can customize the code with your workspace ID, project ID, and version number.
Next, log into your Roboflow account and download the dataset of your choice in the
COCO, YOLO, or Pascal VOC format. You can customize the following code snippet with
your workspace ID, project ID, and version number.
=== "COCO"
@ -56,21 +66,12 @@ Next, log into your Roboflow account and download the dataset of your choice. Th
dataset = project.version("<PROJECT_VERSION>").download("voc")
```
=== "CreateML"
```python
import roboflow
roboflow.login()
rf = roboflow.Roboflow()
project = rf.workspace("<WORKSPACE_ID>").project("<PROJECT_ID>")
dataset = project.version("<PROJECT_VERSION>").download("createml")
```
## Load Dataset
The Supervision library provides convenient functions to load datasets in various formats. If your dataset is already split into train, test, and valid subsets, you can load each of those as separate [`sv.DetectionDataset`](https://supervision.roboflow.com/latest/datasets/core/#supervision.dataset.core.DetectionDataset) instances.
The Supervision library provides convenient functions to load datasets in various
formats. If your dataset is already split into train, test, and valid subsets, you can
load each of those as separate [`sv.DetectionDataset`](https://supervision.roboflow.com/latest/datasets/core/#supervision.dataset.core.DetectionDataset)
instances.
=== "COCO"
@ -156,63 +157,11 @@ The Supervision library provides convenient functions to load datasets in variou
# 800, 100, 100
```
=== "CreateML"
We can do so using the [`sv.DetectionDataset.from_createml`](https://supervision.roboflow.com/latest/datasets/core/#supervision.dataset.core.DetectionDataset.from_createml) to load annotations in [CreateML](https://roboflow.com/formats/createml-json) format.
```python
import supervision as sv
ds_train = sv.DetectionDataset.from_createml(
images_directory_path=f"{dataset.location}/train",
annotations_path=f"{dataset.location}/train/_annotations.createml.json",
)
ds_valid = sv.DetectionDataset.from_createml(
images_directory_path=f"{dataset.location}/valid",
annotations_path=f"{dataset.location}/valid/_annotations.createml.json",
)
ds_test = sv.DetectionDataset.from_createml(
images_directory_path=f"{dataset.location}/test",
annotations_path=f"{dataset.location}/test/_annotations.createml.json",
)
ds_train.classes
# ['person', 'bicycle', 'car', ...]
len(ds_train), len(ds_valid), len(ds_test)
# 800, 100, 100
```
=== "LabelMe"
We can do so using the [`sv.DetectionDataset.from_labelme`](https://supervision.roboflow.com/latest/datasets/core/#supervision.dataset.core.DetectionDataset.from_labelme) to load annotations in [LabelMe](https://roboflow.com/formats/labelme-json) format. LabelMe `rectangle` shapes are loaded as bounding boxes and `polygon` shapes are loaded as masks with bounding boxes.
```python
import supervision as sv
ds_train = sv.DetectionDataset.from_labelme(
images_directory_path="<TRAIN_IMAGES_DIRECTORY_PATH>",
annotations_directory_path="<TRAIN_ANNOTATIONS_DIRECTORY_PATH>",
)
ds_valid = sv.DetectionDataset.from_labelme(
images_directory_path="<VALID_IMAGES_DIRECTORY_PATH>",
annotations_directory_path="<VALID_ANNOTATIONS_DIRECTORY_PATH>",
)
ds_test = sv.DetectionDataset.from_labelme(
images_directory_path="<TEST_IMAGES_DIRECTORY_PATH>",
annotations_directory_path="<TEST_ANNOTATIONS_DIRECTORY_PATH>",
)
ds_train.classes
# ['person', 'bicycle', 'car', ...]
len(ds_train), len(ds_valid), len(ds_test)
# 800, 100, 100
```
## Split Dataset
If your dataset is not already split into train, test, and valid subsets, you can easily do so using the [`sv.DetectionDataset.split`](https://supervision.roboflow.com/latest/datasets/core/#supervision.dataset.core.DetectionDataset.split) method. We can split it as follows, ensuring a random shuffle of the data.
If your dataset is not already split into train, test, and valid subsets, you can
easily do so using the [`sv.DetectionDataset.split`](https://supervision.roboflow.com/latest/datasets/core/#supervision.dataset.core.DetectionDataset.split)
method. We can split it as follows, ensuring a random shuffle of the data.
```python
import supervision as sv
@ -231,7 +180,9 @@ len(ds_train), len(ds_valid), len(ds_test)
## Merge Dataset
If you have multiple datasets that you would like to merge, you can do so using the [`sv.DetectionDataset.merge`](https://supervision.roboflow.com/latest/datasets/core/#supervision.dataset.core.DetectionDataset.merge) method.
If you have multiple datasets that you would like to merge, you can do so using the
[`sv.DetectionDataset.merge`](https://supervision.roboflow.com/latest/datasets/core/#supervision.dataset.core.DetectionDataset.merge)
method.
=== "COCO"
@ -335,75 +286,12 @@ If you have multiple datasets that you would like to merge, you can do so using
# 1000
```
=== "CreateML"
```{ .py hl_lines="22-28" }
import supervision as sv
ds_train = sv.DetectionDataset.from_createml(
images_directory_path=f'{dataset.location}/train',
annotations_path=f'{dataset.location}/train/_annotations.createml.json',
)
ds_valid = sv.DetectionDataset.from_createml(
images_directory_path=f'{dataset.location}/valid',
annotations_path=f'{dataset.location}/valid/_annotations.createml.json',
)
ds_test = sv.DetectionDataset.from_createml(
images_directory_path=f'{dataset.location}/test',
annotations_path=f'{dataset.location}/test/_annotations.createml.json',
)
ds_train.classes
# ['person', 'bicycle', 'car', ...]
len(ds_train), len(ds_valid), len(ds_test)
# 800, 100, 100
ds = sv.DetectionDataset.merge([ds_train, ds_valid, ds_test])
ds.classes
# ['person', 'bicycle', 'car', ...]
len(ds)
# 1000
```
=== "LabelMe"
```{ .py hl_lines="22-28" }
import supervision as sv
ds_train = sv.DetectionDataset.from_labelme(
images_directory_path="<TRAIN_IMAGES_DIRECTORY_PATH>",
annotations_directory_path="<TRAIN_ANNOTATIONS_DIRECTORY_PATH>",
)
ds_valid = sv.DetectionDataset.from_labelme(
images_directory_path="<VALID_IMAGES_DIRECTORY_PATH>",
annotations_directory_path="<VALID_ANNOTATIONS_DIRECTORY_PATH>",
)
ds_test = sv.DetectionDataset.from_labelme(
images_directory_path="<TEST_IMAGES_DIRECTORY_PATH>",
annotations_directory_path="<TEST_ANNOTATIONS_DIRECTORY_PATH>",
)
ds_train.classes
# ['person', 'bicycle', 'car', ...]
len(ds_train), len(ds_valid), len(ds_test)
# 800, 100, 100
ds = sv.DetectionDataset.merge([ds_train, ds_valid, ds_test])
ds.classes
# ['person', 'bicycle', 'car', ...]
len(ds)
# 1000
```
## Iterate over Dataset
There are two ways to loop over a `sv.DetectionDataset`: using a direct [for loop](https://supervision.roboflow.com/latest/datasets/core/#supervision.dataset.core.DetectionDataset.__iter__) called on the `sv.DetectionDataset` instance or loading `sv.DetectionDataset` entries [by index](https://supervision.roboflow.com/latest/datasets/core/#supervision.dataset.core.DetectionDataset.__getitem__).
There are two ways to loop over a `sv.DetectionDataset`: using a direct
[for loop](https://supervision.roboflow.com/latest/datasets/core/#supervision.dataset.core.DetectionDataset.__iter__)
called on the `sv.DetectionDataset` instance or loading `sv.DetectionDataset` entries
[by index](https://supervision.roboflow.com/latest/datasets/core/#supervision.dataset.core.DetectionDataset.__getitem__).
```python
import supervision as sv
@ -422,7 +310,13 @@ for idx in range(len(ds)):
## Visualize Dataset
The Supervision library provides tools for easily visualizing your detection dataset. You can create a grid of annotated images to quickly inspect your data and labels. First, initialize the [`sv.BoxAnnotator`](https://supervision.roboflow.com/latest/detection/annotators/#supervision.annotators.core.BoxAnnotator) and [`sv.LabelAnnotator`](https://supervision.roboflow.com/latest/detection/annotators/#supervision.annotators.core.LabelAnnotator). Then, iterate through a subset of the dataset (e.g., the first 25 images), drawing bounding boxes and class labels on each image. Finally, combine the annotated images into a grid for display.
The Supervision library provides tools for easily visualizing your detection dataset.
You can create a grid of annotated images to quickly inspect your data and labels.
First, initialize the [`sv.BoxAnnotator`](https://supervision.roboflow.com/latest/detection/annotators/#supervision.annotators.core.BoxAnnotator)
and [`sv.LabelAnnotator`](https://supervision.roboflow.com/latest/detection/annotators/#supervision.annotators.core.LabelAnnotator).
Then, iterate through a subset of the dataset (e.g., the first 25 images), drawing
bounding boxes and class labels on each image. Finally, combine the annotated images
into a grid for display.
```python
import supervision as sv
@ -499,45 +393,24 @@ sv.plot_images_grid(
)
```
=== "CreateML"
We can do so using the [`sv.DetectionDataset.as_createml`](https://supervision.roboflow.com/latest/datasets/core/#supervision.dataset.core.DetectionDataset.as_createml) method to save annotations in [CreateML](https://roboflow.com/formats/createml-json) format.
```python
import supervision as sv
ds = sv.DetectionDataset(...)
ds.as_createml(
images_directory_path="<IMAGE_DIRECTORY_PATH>",
annotations_path="<ANNOTATIONS_PATH>",
)
```
=== "LabelMe"
We can do so using the [`sv.DetectionDataset.as_labelme`](https://supervision.roboflow.com/latest/datasets/core/#supervision.dataset.core.DetectionDataset.as_labelme) method to save annotations in [LabelMe](https://roboflow.com/formats/labelme-json) format. Detections with masks are exported as `polygon` shapes; box-only detections are exported as `rectangle` shapes.
```python
import supervision as sv
ds = sv.DetectionDataset(...)
ds.as_labelme(
images_directory_path="<IMAGE_DIRECTORY_PATH>",
annotations_directory_path="<ANNOTATIONS_DIRECTORY_PATH>",
)
```
## Augment Dataset
In this section, we'll explore using Supervision in combination with Albumentations to augment our dataset. Data augmentation is a common technique in computer vision to increase the size and diversity of training datasets, leading to improved model performance and generalization.
In this section, we'll explore using Supervision in combination with Albumentations to
augment our dataset. Data augmentation is a common technique in computer vision to
increase the size and diversity of training datasets, leading to improved model
performance and generalization.
```bash
pip install albumentations
```
Albumentations provides a flexible and powerful API for image augmentation. The core of the library is the [`Compose`](https://albumentations.ai/docs/api-reference/albumentations/core/composition/#Compose) class, which allows you to chain multiple image transformations together. Each transformation is defined using a dedicated class, such as [`HorizontalFlip`](https://albumentations.ai/docs/api-reference/albumentations/augmentations/geometric/flip/#HorizontalFlip), [`RandomBrightnessContrast`](https://albumentations.ai/docs/api-reference/albumentations/augmentations/pixel/transforms/#RandomBrightnessContrast), or [`Perspective`](https://albumentations.ai/docs/api-reference/albumentations/augmentations/geometric/transforms/#Perspective).
Albumentations provides a flexible and powerful API for image augmentation. The core of
the library is the [`Compose`](https://albumentations.ai/docs/api-reference/albumentations/core/composition/#Compose)
class, which allows you to chain multiple image transformations together. Each
transformation is defined using a dedicated class, such as
[`HorizontalFlip`](https://albumentations.ai/docs/api-reference/albumentations/augmentations/geometric/flip/#HorizontalFlip),
[`RandomBrightnessContrast`](https://albumentations.ai/docs/api-reference/albumentations/augmentations/pixel/transforms/#RandomBrightnessContrast),
or [`Perspective`](https://albumentations.ai/docs/api-reference/albumentations/augmentations/geometric/transforms/#Perspective).
```python
import albumentations as A
@ -555,7 +428,8 @@ augmentation = A.Compose(
)
```
The key is to set `format='pascal_voc'`, which corresponds to the `[x_min, y_min, x_max, y_max]` bounding box format used in Supervision.
The key is to set `format='pascal_voc'`, which corresponds to the
`[x_min, y_min, x_max, y_max]` bounding box format used in Supervision.
```python
import numpy as np
@ -586,7 +460,7 @@ augmented_annotations = replace(
### What dataset formats does supervision support?
For detection datasets, supervision supports YOLO, COCO JSON, Pascal VOC, CreateML, and LabelMe. Use `DetectionDataset.from_yolo()`, `from_coco()`, `from_pascal_voc()`, `from_createml()`, or `from_labelme()` to load, and `as_yolo()`, `as_coco()`, `as_pascal_voc()`, `as_createml()`, or `as_labelme()` to save. Classification datasets use `ClassificationDataset.from_folder_structure()` and `as_folder_structure()`.
For detection datasets, supervision supports YOLO, COCO JSON, and Pascal VOC. Use `DetectionDataset.from_yolo()`, `from_coco()`, or `from_pascal_voc()` to load, and `as_yolo()`, `as_coco()`, or `as_pascal_voc()` to save. Classification datasets use `ClassificationDataset.from_folder_structure()` and `as_folder_structure()`.
### Can I split a dataset into train/val/test sets?

View File

@ -10,11 +10,19 @@ date_modified: 2026-04-22
# Save Detections
Supervision enables an easy way to save detections in .CSV and .JSON files for offline processing. This guide demonstrates how to perform video inference using the [Inference](https://github.com/roboflow/inference), [Ultralytics](https://github.com/ultralytics/ultralytics) or [Transformers](https://github.com/huggingface/transformers) packages and save their results with [`sv.CSVSink`](https://supervision.roboflow.com/latest/detection/tools/save_detections/#supervision.detection.tools.csv_sink.CSVSink) and [`sv.JSONSink`](https://supervision.roboflow.com/latest/detection/tools/save_detections/#supervision.detection.tools.json_sink.JSONSink).
Supervision enables an easy way to save detections in .CSV and .JSON files for offline
processing. This guide demonstrates how to perform video inference using the
[Inference](https://github.com/roboflow/inference),
[Ultralytics](https://github.com/ultralytics/ultralytics) or
[Transformers](https://github.com/huggingface/transformers) packages and save their results with
[`sv.CSVSink`](https://supervision.roboflow.com/latest/detection/tools/save_detections/#supervision.detection.tools.csv_sink.CSVSink) and
[`sv.JSONSink`](https://supervision.roboflow.com/latest/detection/tools/save_detections/#supervision.detection.tools.json_sink.JSONSink).
## Run Detection
First, you'll need to obtain predictions from your object detection or segmentation model. You can learn more on this topic in our [How to Detect and Annotate](https://supervision.roboflow.com/latest/how_to/detect_and_annotate/) guide.
First, you'll need to obtain predictions from your object detection or segmentation
model. You can learn more on this topic in our
[How to Detect and Annotate](https://supervision.roboflow.com/latest/how_to/detect_and_annotate/) guide.
To generate predictions for saving, initialize your model and iterate over video frames using `sv.get_video_frames_generator`. Each frame is passed to the model, and the raw output is converted into a `sv.Detections` object. This detection loop forms the foundation for both CSV and JSON export workflows shown below.
@ -74,7 +82,11 @@ To generate predictions for saving, initialize your model and iterate over video
## Save Detections as CSV
To save detections to a `.CSV` file, open our [`sv.CSVSink`](https://supervision.roboflow.com/latest/detection/tools/save_detections/#supervision.detection.tools.csv_sink.CSVSink) and then pass the [`sv.Detections`](https://supervision.roboflow.com/latest/detection/core/#supervision.detection.core.Detections) object resulting from the inference to it. Its fields are parsed and saved on disk.
To save detections to a `.CSV` file, open our
[`sv.CSVSink`](https://supervision.roboflow.com/latest/detection/tools/save_detections/#supervision.detection.tools.csv_sink.CSVSink)
and then pass the
[`sv.Detections`](https://supervision.roboflow.com/latest/detection/core/#supervision.detection.core.Detections)
object resulting from the inference to it. Its fields are parsed and saved on disk.
=== "Inference"
@ -146,7 +158,12 @@ To save detections to a `.CSV` file, open our [`sv.CSVSink`](https://supervision
## Custom Fields
Besides regular fields in [`sv.Detections`](https://supervision.roboflow.com/latest/detection/core/#supervision.detection.core.Detections), [`sv.CSVSink`](https://supervision.roboflow.com/latest/detection/tools/save_detections/#supervision.detection.tools.csv_sink.CSVSink) also allows you to add custom information to each row, which can be passed via the `custom_data` dictionary. Let's utilize this feature to save information about the frame index from which the detections originate.
Besides regular fields in
[`sv.Detections`](https://supervision.roboflow.com/latest/detection/core/#supervision.detection.core.Detections),
[`sv.CSVSink`](https://supervision.roboflow.com/latest/detection/tools/save_detections/#supervision.detection.tools.csv_sink.CSVSink)
also allows you to add custom information to each row, which can be passed via the
`custom_data` dictionary. Let's utilize this feature to save information about the
frame index from which the detections originate.
=== "Inference"
@ -218,7 +235,11 @@ Besides regular fields in [`sv.Detections`](https://supervision.roboflow.com/lat
## Save Detections as JSON
If you prefer to save the result in a `.JSON` file instead of a `.CSV` file, all you need to do is replace [`sv.CSVSink`](https://supervision.roboflow.com/latest/detection/tools/save_detections/#supervision.detection.tools.csv_sink.CSVSink) with [`sv.JSONSink`](https://supervision.roboflow.com/latest/detection/tools/save_detections/#supervision.detection.tools.json_sink.JSONSink).
If you prefer to save the result in a `.JSON` file instead of a `.CSV` file, all you
need to do is replace
[`sv.CSVSink`](https://supervision.roboflow.com/latest/detection/tools/save_detections/#supervision.detection.tools.csv_sink.CSVSink)
with
[`sv.JSONSink`](https://supervision.roboflow.com/latest/detection/tools/save_detections/#supervision.detection.tools.json_sink.JSONSink).
=== "Inference"

View File

@ -13,11 +13,20 @@ date_modified: 2026-04-22
# Track Objects
Leverage Supervision's advanced capabilities for enhancing your video analysis by seamlessly [tracking](https://supervision.roboflow.com/latest/trackers/) objects recognized by a multitude of object detection, segmentation and keypoint models. This comprehensive guide will take you through the steps to perform inference using the YOLOv8 model via either the [Inference](https://github.com/roboflow/inference) or [Ultralytics](https://github.com/ultralytics/ultralytics) packages. Following this, you'll discover how to track these objects efficiently and annotate your video content for a deeper analysis.
Leverage Supervision's advanced capabilities for enhancing your video analysis by
seamlessly [tracking](https://supervision.roboflow.com/latest/trackers/) objects recognized by
a multitude of object detection, segmentation and keypoint models. This comprehensive guide will
take you through the steps to perform inference using the YOLOv8 model via either the
[Inference](https://github.com/roboflow/inference) or
[Ultralytics](https://github.com/ultralytics/ultralytics) packages. Following this,
you'll discover how to track these objects efficiently and annotate your video content
for a deeper analysis.
## Object Detection & Segmentation
To make it easier for you to follow our tutorial download the video we will use as an example. You can do this using the [`supervision.assets`](https://supervision.roboflow.com/latest/assets/) module included in the base package.
To make it easier for you to follow our tutorial download the video we will use as an
example. You can do this using the
[`supervision.assets`](https://supervision.roboflow.com/latest/assets/) module included in the base package.
This section demonstrates how to detect and segment objects in video frames using YOLOv8 with either the Inference or Ultralytics package. You will download a sample video, define a per-frame callback function that runs model prediction, and process the entire video to produce an annotated output file.
@ -33,9 +42,16 @@ download_assets(VideoAssets.PEOPLE_WALKING)
### Run Inference
First, you'll need to obtain predictions from your object detection or segmentation model. In this tutorial, we are using the YOLOv8 model as an example. However, Supervision is versatile and compatible with various models. Check this [link](https://supervision.roboflow.com/latest/how_to/detect_and_annotate/#load-predictions-into-supervision) for guidance on how to plug in other models.
First, you'll need to obtain predictions from your object detection or segmentation
model. In this tutorial, we are using the YOLOv8 model as an example. However,
Supervision is versatile and compatible with various models. Check this
[link](https://supervision.roboflow.com/latest/how_to/detect_and_annotate/#load-predictions-into-supervision)
for guidance on how to plug in other models.
We will define a `callback` function, which will process each frame of the video by obtaining model predictions and then annotating the frame based on these predictions. This `callback` function will be essential in the subsequent steps of the tutorial, as it will be modified to include tracking, labeling, and trace annotations.
We will define a `callback` function, which will process each frame of the video
by obtaining model predictions and then annotating the frame based on these predictions.
This `callback` function will be essential in the subsequent steps of the tutorial, as
it will be modified to include tracking, labeling, and trace annotations.
!!! tip
@ -91,11 +107,11 @@ We will define a `callback` function, which will process each frame of the video
### Tracking
After running inference and obtaining predictions, the next step is to track the detected objects throughout the video. Utilizing Supervisions [`sv.ByteTrack`](https://supervision.roboflow.com/latest/trackers/#supervision.tracker.byte_tracker.core.ByteTrack) functionality, each detected object is assigned a unique tracker ID, enabling the continuous following of the object's motion path across different frames.
!!! warning "Deprecated tracker wrapper"
`sv.ByteTrack` is deprecated in favor of `ByteTrackTracker` from the external `trackers` package. The external tracker uses `update()` instead of `update_with_detections()`.
After running inference and obtaining predictions, the next step is to track the
detected objects throughout the video. Utilizing Supervisions
[`sv.ByteTrack`](https://supervision.roboflow.com/latest/trackers/#supervision.tracker.byte_tracker.core.ByteTrack)
functionality, each detected object is assigned a unique tracker ID,
enabling the continuous following of the object's motion path across different frames.
=== "Ultralytics"
@ -147,7 +163,11 @@ After running inference and obtaining predictions, the next step is to track the
### Annotate Video with Tracking IDs
Annotating the video with tracking IDs helps in distinguishing and following each object distinctly. With the [`sv.LabelAnnotator`](https://supervision.roboflow.com/latest/detection/annotators/#supervision.annotators.core.LabelAnnotator) in Supervision, we can overlay the tracker IDs and class labels on the detected objects, offering a clear visual representation of each object's class and unique identifier.
Annotating the video with tracking IDs helps in distinguishing and following each object
distinctly. With the
[`sv.LabelAnnotator`](https://supervision.roboflow.com/latest/detection/annotators/#supervision.annotators.core.LabelAnnotator)
in Supervision, we can overlay the tracker IDs and class labels on the detected objects,
offering a clear visual representation of each object's class and unique identifier.
=== "Ultralytics"
@ -225,7 +245,11 @@ Annotating the video with tracking IDs helps in distinguishing and following eac
### Annotate Video with Traces
Adding traces to the video involves overlaying the historical paths of the detected objects. This feature, powered by the [`sv.TraceAnnotator`](https://supervision.roboflow.com/latest/detection/annotators/#supervision.annotators.core.TraceAnnotator), allows for visualizing the trajectories of objects, helping in understanding the movement patterns and interactions between objects in the video.
Adding traces to the video involves overlaying the historical paths of the detected
objects. This feature, powered by the
[`sv.TraceAnnotator`](https://supervision.roboflow.com/latest/detection/annotators/#supervision.annotators.core.TraceAnnotator),
allows for visualizing the trajectories of objects, helping in understanding the
movement patterns and interactions between objects in the video.
=== "Ultralytics"
@ -311,7 +335,8 @@ Adding traces to the video involves overlaying the historical paths of the detec
Models aren't limited to object detection and segmentation. Keypoint detection allows for detailed analysis of body joints and connections, especially valuable for applications like human pose estimation. This section introduces keypoint tracking. We'll walk through the steps of annotating keypoints, converting them into bounding box detections compatible with `ByteTrack`, and applying detection smoothing for enhanced stability.
To make it easier for you to follow our tutorial, let's download the video we will use as an example. You can do this using the [`supervision.assets`](https://supervision.roboflow.com/latest/assets/) module included in the base package.
To make it easier for you to follow our tutorial, let's download the video we will use as an
example. You can do this using the [`supervision.assets`](https://supervision.roboflow.com/latest/assets/) module included in the base package.
```python
from supervision.assets import download_assets, VideoAssets
@ -325,7 +350,8 @@ download_assets(VideoAssets.SKIING)
### Keypoint Detection
First, you'll need to obtain predictions from your keypoint detection model. In this tutorial, we are using the YOLOv8 model as an example. However, Supervision is versatile and compatible with various models. Check this [link](https://supervision.roboflow.com/latest/keypoint/core/) for guidance on how to plug in other models.
First, you'll need to obtain predictions from your keypoint detection model. In this tutorial, we are using the YOLOv8 model as an example. However,
Supervision is versatile and compatible with various models. Check this [link](https://supervision.roboflow.com/latest/keypoint/core/) for guidance on how to plug in other models.
We will define a `callback` function, which will process each frame of the video by obtaining model predictions and then annotating the frame based on these predictions.

View File

@ -1,193 +0,0 @@
---
comments: true
description: Use CompactMask for memory-efficient instance segmentation in supervision — ingest COCO RLE payloads, skip mask materialisation, and merge mixed dense and compact detections without allocating a full pixel stack.
authors:
- name: Borda
role: Open Source Engineer, Roboflow
github: https://github.com/borda
date_modified: 2026-07-01
---
# Use Compact Masks for Memory-Efficient Segmentation
[CompactMask][supervision.detection.compact_mask.CompactMask] stores each instance mask as a run-length encoding of its bounding-box **crop** rather than a full `(H, W)` boolean frame. For high-resolution images with many sparse masks this can reduce memory from tens of gigabytes to tens of megabytes, and eliminates full-frame decode work in annotators that only need the cropped region.
!!! Note
`sv.mask_to_xyxy` keeps supervision's inclusive max-coordinate convention for compatibility with `CompactMask` and current box-based adapters. Use `sv.mask_to_roi` when you need exclusive slice bounds for NumPy indexing or crop extraction.
This guide covers the four main integration points:
1. [Ingesting COCO RLE payloads directly as CompactMask](#ingest-coco-rle-payloads)
2. [Parsing Roboflow Inference results without a dense stack](#parse-inference-results)
3. [Skipping mask materialisation for box/label annotators](#skip-unnecessary-materialisation)
4. [Merging mixed dense and compact detections](#merge-mixed-detections)
---
## Ingest COCO RLE Payloads
If your model or API returns masks in the COCO RLE format (`{"size": [H, W], "counts": "..."}`) you can convert them directly to `CompactMask` without allocating an `(N, H, W)` boolean array:
```python
import numpy as np
import supervision as sv
from supervision.detection.compact_mask import CompactMask
# Example: two COCO RLE masks for a 720×1280 frame.
# Replace the counts strings with actual compressed RLE payloads from your
# model or API — e.g., from pycocotools mask.encode() or an Inference response.
rles = [
{"size": [720, 1280], "counts": "YOUR_RLE_COUNTS_STRING_HERE"},
{"size": [720, 1280], "counts": "YOUR_RLE_COUNTS_STRING_HERE"},
]
xyxy = np.array(
[
[100.0, 50.0, 400.0, 300.0],
[500.0, 200.0, 900.0, 600.0],
]
)
compact = CompactMask.from_coco_rle(rles, xyxy, image_shape=(720, 1280))
detections = sv.Detections(
xyxy=xyxy,
mask=compact,
class_id=np.array([0, 1]),
)
```
`from_coco_rle` uses run-length arithmetic scoped to each bounding box so no dense pixel array is ever created. Uncompressed integer count lists are also accepted in place of compressed strings.
---
## Parse Inference Results
`Detections.from_inference` accepts a `compact_masks=True` flag that routes the Roboflow RLE payload through `CompactMask.from_coco_rle` instead of decoding to a dense stack:
```python
import supervision as sv
# result: a Roboflow Inference v2 response dict with instance masks.
detections = sv.Detections.from_inference(result, compact_masks=True)
from supervision.detection.compact_mask import CompactMask
assert isinstance(detections.mask, CompactMask)
```
!!! Warning
`compact_masks=True` crops each mask to its detector bounding box. Pixels outside the box are silently dropped. For masks that extend meaningfully beyond the reported bounding box, use the default `compact_masks=False` (dense decode) to preserve all pixels.
To convert an existing dense-mask `Detections` to compact at any point:
```python
detections_compact = detections.to_compact_masks()
```
---
## Skip Unnecessary Materialisation
Annotators that do not draw masks (box, label, circle, ellipse, trace, keypoint) expose `requires_mask = False`. Integrations can branch on this flag to avoid decoding compact or RLE masks before annotation:
```python
import supervision as sv
annotators = [
sv.BoxAnnotator(),
sv.LabelAnnotator(),
sv.MaskAnnotator(), # requires_mask = True
]
for ann in annotators:
if ann.requires_mask:
# Annotator reads mask pixels — CompactMask decodes lazily per crop.
scene = ann.annotate(scene, detections)
else:
# Annotator ignores masks — strip mask field to eliminate any decode cost.
det_no_mask = sv.Detections(
xyxy=detections.xyxy,
confidence=detections.confidence,
class_id=detections.class_id,
)
scene = ann.annotate(scene, det_no_mask)
```
Annotators that set `requires_mask = True`: [MaskAnnotator][supervision.annotators.core.MaskAnnotator], [PolygonAnnotator][supervision.annotators.core.PolygonAnnotator], [HaloAnnotator][supervision.annotators.core.HaloAnnotator].
All others default to `requires_mask = False`.
!!! Note
`PolygonAnnotator` and `MaskAnnotator` both operate directly on `CompactMask` without materialising the full `(N, H, W)` frame — passing compact detections to them is already efficient.
---
## Merge Mixed Detections
When merging `Detections` objects that mix dense `ndarray` masks and `CompactMask` instances, `Detections.merge` converts dense inputs to `CompactMask` automatically. No full `(N, H, W)` stack is allocated:
```python
import numpy as np
import supervision as sv
from supervision.detection.compact_mask import CompactMask
H, W = 720, 1280
# Compact detections from an RLE-based source.
# Replace the counts string with a real compressed RLE payload from your model or API.
rles = [{"size": [H, W], "counts": "YOUR_RLE_COUNTS_STRING_HERE"}]
xyxy_a = np.array([[100.0, 50.0, 400.0, 300.0]])
cm = CompactMask.from_coco_rle(rles, xyxy_a, image_shape=(H, W))
det_a = sv.Detections(xyxy=xyxy_a, mask=cm, class_id=np.array([0]))
# Dense detections from a different source.
masks_b = np.zeros((1, H, W), dtype=bool)
masks_b[0, 200:400, 500:800] = True
xyxy_b = np.array([[500.0, 200.0, 799.0, 399.0]])
det_b = sv.Detections(xyxy=xyxy_b, mask=masks_b, class_id=np.array([1]))
# Output is CompactMask regardless of input order.
merged = sv.Detections.merge([det_a, det_b])
assert isinstance(merged.mask, CompactMask)
assert len(merged) == 2
```
Merge rules:
| Inputs | Output mask type |
| ------------------------------------- | ------------------------------- |
| All `CompactMask` | `CompactMask` |
| Mixed `CompactMask` + dense `ndarray` | `CompactMask` |
| All dense `ndarray` | `ndarray` (backward compatible) |
All `CompactMask` inputs must share the same `image_shape`; mismatches raise `ValueError`.
---
## Performance Notes
These estimates apply to the **parsing and annotation stage**, not end-to-end pipeline FPS. Model inference typically dominates total runtime.
| Optimisation | Realistic gain | Applies when |
| ---------------------------- | -------------------------- | ------------------------------------------------------------- |
| `from_coco_rle` ingestion | 2560% faster parse | Full-frame COCO RLE payload; current dense decode path |
| `MaskAnnotator` ROI blending | 1035% faster annotation | Many small, sparse masks on high-res frames |
| `PolygonAnnotator` crop path | 1545% faster polygon draw | Many compact masks; full-frame materialise was the bottleneck |
| Mixed-mask merge | 520% faster merge | Mix of compact and dense sources (e.g. multi-camera stitch) |
Upper-end gains assume: ≥1080p frames, tens to hundreds of instances, masks covering less than ~20% of total pixels.
---
## API Reference
- [CompactMask][supervision.detection.compact_mask.CompactMask]
- [CompactMask.from_coco_rle][supervision.detection.compact_mask.CompactMask.from_coco_rle]
- [CompactMask.from_dense][supervision.detection.compact_mask.CompactMask.from_dense]
- [Detections.from_inference][supervision.detection.core.Detections.from_inference]
- [Detections.to_compact_masks][supervision.detection.core.Detections.to_compact_masks]
- [Detections.merge][supervision.detection.core.Detections.merge]
- [BaseAnnotator.requires_mask][supervision.annotators.base.BaseAnnotator]

View File

@ -45,13 +45,17 @@ We write your reusable computer vision tools. Whether you need to load your data
## 💻 Install
You can install `supervision` in a [**Python>=3.10**](https://www.python.org/) environment.
You can install `supervision` in a
[**Python>=3.9**](https://www.python.org/) environment.
!!! example "Installation"
=== "pip (recommended)"
[![version](https://badge.fury.io/py/supervision.svg)](https://badge.fury.io/py/supervision) [![downloads](https://img.shields.io/pypi/dm/supervision)](https://pypistats.org/packages/supervision) [![license](https://img.shields.io/pypi/l/supervision)](../LICENSE.md) [![python-version](https://img.shields.io/pypi/pyversions/supervision)](https://badge.fury.io/py/supervision)
[![version](https://badge.fury.io/py/supervision.svg)](https://badge.fury.io/py/supervision)
[![downloads](https://img.shields.io/pypi/dm/supervision)](https://pypistats.org/packages/supervision)
[![license](https://img.shields.io/pypi/l/supervision)](../LICENSE.md)
[![python-version](https://img.shields.io/pypi/pyversions/supervision)](https://badge.fury.io/py/supervision)
```bash
pip install supervision
@ -59,7 +63,10 @@ You can install `supervision` in a [**Python>=3.10**](https://www.python.org/) e
=== "poetry"
[![version](https://badge.fury.io/py/supervision.svg)](https://badge.fury.io/py/supervision) [![downloads](https://img.shields.io/pypi/dm/supervision)](https://pypistats.org/packages/supervision) [![license](https://img.shields.io/pypi/l/supervision)](../LICENSE.md) [![python-version](https://img.shields.io/pypi/pyversions/supervision)](https://badge.fury.io/py/supervision)
[![version](https://badge.fury.io/py/supervision.svg)](https://badge.fury.io/py/supervision)
[![downloads](https://img.shields.io/pypi/dm/supervision)](https://pypistats.org/packages/supervision)
[![license](https://img.shields.io/pypi/l/supervision)](../LICENSE.md)
[![python-version](https://img.shields.io/pypi/pyversions/supervision)](https://badge.fury.io/py/supervision)
```bash
poetry add supervision
@ -67,7 +74,10 @@ You can install `supervision` in a [**Python>=3.10**](https://www.python.org/) e
=== "uv"
[![version](https://badge.fury.io/py/supervision.svg)](https://badge.fury.io/py/supervision) [![downloads](https://img.shields.io/pypi/dm/supervision)](https://pypistats.org/packages/supervision) [![license](https://img.shields.io/pypi/l/supervision)](../LICENSE.md) [![python-version](https://img.shields.io/pypi/pyversions/supervision)](https://badge.fury.io/py/supervision)
[![version](https://badge.fury.io/py/supervision.svg)](https://badge.fury.io/py/supervision)
[![downloads](https://img.shields.io/pypi/dm/supervision)](https://pypistats.org/packages/supervision)
[![license](https://img.shields.io/pypi/l/supervision)](../LICENSE.md)
[![python-version](https://img.shields.io/pypi/pyversions/supervision)](https://badge.fury.io/py/supervision)
```bash
uv pip install supervision
@ -81,7 +91,10 @@ You can install `supervision` in a [**Python>=3.10**](https://www.python.org/) e
=== "rye"
[![version](https://badge.fury.io/py/supervision.svg)](https://badge.fury.io/py/supervision) [![downloads](https://img.shields.io/pypi/dm/supervision)](https://pypistats.org/packages/supervision) [![license](https://img.shields.io/pypi/l/supervision)](../LICENSE.md) [![python-version](https://img.shields.io/pypi/pyversions/supervision)](https://badge.fury.io/py/supervision)
[![version](https://badge.fury.io/py/supervision.svg)](https://badge.fury.io/py/supervision)
[![downloads](https://img.shields.io/pypi/dm/supervision)](https://pypistats.org/packages/supervision)
[![license](https://img.shields.io/pypi/l/supervision)](../LICENSE.md)
[![python-version](https://img.shields.io/pypi/pyversions/supervision)](https://badge.fury.io/py/supervision)
```bash
rye add supervision

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@ -77,63 +77,6 @@ comments: true
</div>
=== "VertexEllipseAreaAnnotator"
```python
import supervision as sv
image = ...
key_points = sv.KeyPoints(...)
area_annotator = sv.VertexEllipseAreaAnnotator(
color=sv.Color.GREEN,
sigma=2.0,
)
annotated_frame = area_annotator.annotate(
scene=image.copy(),
key_points=key_points,
)
```
`sv.VertexEllipseAnnotator` is a compatibility alias for `sv.VertexEllipseAreaAnnotator`.
=== "VertexEllipseOutlineAnnotator"
```python
import supervision as sv
image = ...
key_points = sv.KeyPoints(...)
outline_annotator = sv.VertexEllipseOutlineAnnotator(
color=sv.Color.GREEN,
sigma=2.0,
thickness=2,
)
annotated_frame = outline_annotator.annotate(
scene=image.copy(),
key_points=key_points,
)
```
=== "VertexEllipseHaloAnnotator"
```python
import supervision as sv
image = ...
key_points = sv.KeyPoints(...)
halo_annotator = sv.VertexEllipseHaloAnnotator(
color=sv.Color.GREEN,
sigma=2.0,
)
annotated_frame = halo_annotator.annotate(
scene=image.copy(),
key_points=key_points,
)
```
<div class="md-typeset">
<h2><a href="#supervision.key_points.annotators.VertexAnnotator">VertexAnnotator</a></h2>
</div>
@ -151,21 +94,3 @@ comments: true
</div>
:::supervision.key_points.annotators.VertexLabelAnnotator
<div class="md-typeset">
<h2><a href="#supervision.key_points.annotators.VertexEllipseAreaAnnotator">VertexEllipseAreaAnnotator</a></h2>
</div>
:::supervision.key_points.annotators.VertexEllipseAreaAnnotator
<div class="md-typeset">
<h2><a href="#supervision.key_points.annotators.VertexEllipseOutlineAnnotator">VertexEllipseOutlineAnnotator</a></h2>
</div>
:::supervision.key_points.annotators.VertexEllipseOutlineAnnotator
<div class="md-typeset">
<h2><a href="#supervision.key_points.annotators.VertexEllipseHaloAnnotator">VertexEllipseHaloAnnotator</a></h2>
</div>
:::supervision.key_points.annotators.VertexEllipseHaloAnnotator

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@ -76,7 +76,7 @@ The built-in `sv.ByteTrack` wrapper assigns persistent IDs across video frames t
### Datasets
`sv.DetectionDataset` loads, merges, splits, and converts object detection datasets. Supported formats include YOLO, COCO JSON, Pascal VOC, and LabelMe. `sv.ClassificationDataset` supports folder-structured classification datasets.
`sv.DetectionDataset` loads, merges, splits, and converts object detection datasets. Supported formats include YOLO, COCO JSON, and Pascal VOC. `sv.ClassificationDataset` supports folder-structured classification datasets.
### Metrics
@ -162,7 +162,7 @@ No. Supervision is model agnostic. It is designed to normalize model outputs int
### What dataset formats are supported?
For object detection datasets, Supervision supports YOLO, COCO JSON, Pascal VOC, and LabelMe import and export. For classification datasets, it supports folder-structure import and export.
For object detection datasets, Supervision supports YOLO, COCO JSON, and Pascal VOC import and export. For classification datasets, it supports folder-structure import and export.
### How do I detect small objects?

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@ -53,7 +53,7 @@ Zone-based counting. `PolygonZone.trigger(detections)` returns a boolean mask fo
### sv.DetectionDataset and sv.ClassificationDataset
For detection datasets, load, merge, split, and convert between YOLO, COCO JSON, Pascal VOC, and LabelMe formats. Classification datasets use folder-structure import and export via `ClassificationDataset.from_folder_structure()` and `as_folder_structure()`.
For detection datasets, load, merge, split, and convert between YOLO, COCO JSON, and Pascal VOC formats. Classification datasets use folder-structure import and export via `ClassificationDataset.from_folder_structure()` and `as_folder_structure()`.
### sv.InferenceSlicer
@ -129,11 +129,11 @@ Supervision is an open-source Python library by Roboflow for computer vision wor
### How do I install supervision?
Install with `pip install supervision`. For optional metric dependencies use `pip install supervision[metrics]`. Sample asset utilities are included in the base package under `supervision.assets`. The current package metadata requires Python 3.10+.
Install with `pip install supervision`. For optional metric dependencies use `pip install supervision[metrics]`. Sample asset utilities are included in the base package under `supervision.assets`. The current package metadata requires Python 3.9+.
### What can I do with supervision?
Annotate images and video with bounding boxes, masks, and labels; track objects across frames with persistent IDs; count detections inside polygon zones or line crossings; filter and query detection results; load, split, and convert detection datasets between YOLO, COCO, Pascal VOC, and LabelMe formats; manage classification datasets with folder structures; and benchmark model performance with mAP and confusion matrices.
Annotate images and video with bounding boxes, masks, and labels; track objects across frames with persistent IDs; count detections inside polygon zones or line crossings; filter and query detection results; load, split, and convert detection datasets between YOLO, COCO, and Pascal VOC formats; manage classification datasets with folder structures; and benchmark model performance with mAP and confusion matrices.
### Is supervision free to use?
@ -153,7 +153,7 @@ Use a tracker to assign persistent IDs. The built-in `sv.ByteTrack` wrapper acce
### What dataset formats does supervision support?
For detection datasets, supervision supports YOLO, COCO JSON, Pascal VOC, and LabelMe. Use `DetectionDataset.from_yolo()`, `from_coco()`, `from_pascal_voc()`, or `from_labelme()` to load, and `as_yolo()`, `as_coco()`, `as_pascal_voc()`, or `as_labelme()` to save. For classification datasets, use `ClassificationDataset.from_folder_structure()` and `as_folder_structure()`.
For detection datasets, supervision supports YOLO, COCO JSON, and Pascal VOC. Use `DetectionDataset.from_yolo()`, `from_coco()`, or `from_pascal_voc()` to load, and `as_yolo()`, `as_coco()`, or `as_pascal_voc()` to save. For classification datasets, use `ClassificationDataset.from_folder_structure()` and `as_folder_structure()`.
### How do I count objects in a zone?

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@ -47,7 +47,7 @@ Object tracker wrapper that assigns persistent IDs across video frames. The buil
Zone-based counting. `PolygonZone.trigger(detections)` returns a boolean mask for detections currently inside an arbitrary polygon. `LineZone.trigger(detections)` returns `(crossed_in, crossed_out)` arrays for line crossings and requires `detections.tracker_id` so objects can be matched across frames. Both are commonly paired with zone annotators for visualization.
### sv.DetectionDataset and sv.ClassificationDataset
For detection datasets, load, merge, split, and convert between YOLO, COCO JSON, Pascal VOC, CreateML, and LabelMe formats. Classification datasets use folder-structure import and export via `ClassificationDataset.from_folder_structure()` and `as_folder_structure()`.
For detection datasets, load, merge, split, and convert between YOLO, COCO JSON, and Pascal VOC formats. Classification datasets use folder-structure import and export via `ClassificationDataset.from_folder_structure()` and `as_folder_structure()`.
### sv.InferenceSlicer
SAHI-style inference slicing: split high-resolution images into overlapping tiles, run detection on each tile, merge results with non-maximum suppression or non-maximum merge. Configure tile overlap in pixels with `overlap_wh`.
@ -120,11 +120,11 @@ Supervision is an open-source Python library by Roboflow for computer vision wor
### How do I install supervision?
Install with `pip install supervision`. For optional metric dependencies use `pip install supervision[metrics]`. Sample asset utilities are included in the base package under `supervision.assets`. The current package metadata requires Python 3.10+.
Install with `pip install supervision`. For optional metric dependencies use `pip install supervision[metrics]`. Sample asset utilities are included in the base package under `supervision.assets`. The current package metadata requires Python 3.9+.
### What can I do with supervision?
Annotate images and video with bounding boxes, masks, and labels; track objects across frames with persistent IDs; count detections inside polygon zones or line crossings; filter and query detection results; load, split, and convert detection datasets between YOLO, COCO, Pascal VOC, and LabelMe formats; manage classification datasets with folder structures; and benchmark model performance with mAP and confusion matrices.
Annotate images and video with bounding boxes, masks, and labels; track objects across frames with persistent IDs; count detections inside polygon zones or line crossings; filter and query detection results; load, split, and convert detection datasets between YOLO, COCO, and Pascal VOC formats; manage classification datasets with folder structures; and benchmark model performance with mAP and confusion matrices.
### Is supervision free to use?
@ -144,7 +144,7 @@ Use a tracker to assign persistent IDs. The built-in `sv.ByteTrack` wrapper acce
### What dataset formats does supervision support?
For detection datasets, supervision supports YOLO, COCO JSON, Pascal VOC, CreateML, and LabelMe. Use `DetectionDataset.from_yolo()`, `from_coco()`, `from_pascal_voc()`, `from_createml()`, or `from_labelme()` to load, and `as_yolo()`, `as_coco()`, `as_pascal_voc()`, `as_createml()`, or `as_labelme()` to save. For classification datasets, use `ClassificationDataset.from_folder_structure()` and `as_folder_structure()`.
For detection datasets, supervision supports YOLO, COCO JSON, and Pascal VOC. Use `DetectionDataset.from_yolo()`, `from_coco()`, or `from_pascal_voc()` to load, and `as_yolo()`, `as_coco()`, or `as_pascal_voc()` to save. For classification datasets, use `ClassificationDataset.from_folder_structure()` and `as_folder_structure()`.
### How do I count objects in a zone?

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@ -6,12 +6,6 @@ comments: true
This page contains supplementary values, types and enums that metrics use.
Install the metrics extra before using metrics APIs:
```bash
pip install "supervision[metrics]"
```
<div class="md-typeset">
<h2><a href="#supervision.metrics.core.MetricTarget">MetricTarget</a></h2>
</div>

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@ -4,12 +4,6 @@ comments: true
# F1 Score
Install the metrics extra before using this API:
```bash
pip install "supervision[metrics]"
```
<div class="md-typeset">
<h2><a href="#supervision.metrics.f1_score.F1Score">F1Score</a></h2>
</div>

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@ -1,16 +1,10 @@
---
comments: true
description: API reference for MeanAveragePrecision — compute mAP for object detection benchmarking with boxes, masks, and oriented boxes.
description: API reference for MeanAveragePrecision — compute mAP for object detection benchmarking with bounding boxes.
---
# Mean Average Precision
Install the metrics extra before using this API:
```bash
pip install "supervision[metrics]"
```
<div class="md-typeset">
<h2><a href="#supervision.metrics.mean_average_precision.MeanAveragePrecision">MeanAveragePrecision</a></h2>
</div>

View File

@ -4,12 +4,6 @@ comments: true
# Mean Average Recall
Install the metrics extra before using this API:
```bash
pip install "supervision[metrics]"
```
<div class="md-typeset">
<h2><a href="#supervision.metrics.mean_average_recall.MeanAverageRecall">MeanAverageRecall</a></h2>
</div>

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@ -4,12 +4,6 @@ comments: true
# Precision
Install the metrics extra before using this API:
```bash
pip install "supervision[metrics]"
```
<div class="md-typeset">
<h2><a href="#supervision.metrics.precision.Precision">Precision</a></h2>
</div>

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@ -4,12 +4,6 @@ comments: true
# Recall
Install the metrics extra before using this API:
```bash
pip install "supervision[metrics]"
```
<div class="md-typeset">
<h2><a href="#supervision.metrics.recall.Recall">Recall</a></h2>
</div>

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@ -1,176 +0,0 @@
{
"cells": [
{
"cell_type": "markdown",
"metadata": {
"id": "jxcxFKy2hRnA"
},
"source": [
"# Blurring Faces\n",
"\n",
"---\n",
"\n",
"[![Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/roboflow/supervision/blob/develop/docs/notebooks/blurring_faces.ipynb)"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "FAxD-vAgkadG"
},
"source": [
"Click the `Open in Colab` button to run the cookbook on Google Colab.\n",
"\n",
"## Introduction\n",
"\n",
"In this cookbook we'll use a frame from a video of someone in a supermarket. We'll download this video via the `supervision` assets module. We'll then run inference on this frame using the hosted Roboflow API to fetch detections of faces utilizing an open source face detection model on Roboflow Universe. Finally, we'll use supervision to blur the detected faces."
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "o_F-fJGskuz9"
},
"source": [
"## Install packages\n",
"\n",
"Let's quickly install the `supervision` package with the assets module, as well as the roboflow `inference_sdk` with pip. We'll also install `tqdm` to show a progress bar, but this is optional in production code."
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"id": "c2X8k1opItiO"
},
"outputs": [],
"source": "!pip3 install -q supervision inference tqdm \"Pillow<12\""
},
{
"cell_type": "markdown",
"metadata": {
"id": "9xy1jXMrm5iU"
},
"source": [
"## Download Video and Extract Frame\n",
"\n",
"In order to blur a face in a frame, we'll need a frame with a face in it. Let's download a video, and grab a frame in the middle of the video. I played around a little, and found that the 800th frame is great frame for us to test, since the customer is facing the camera. In this code, we're also using tqdm to display a progress bar of our script."
]
},
{
"metadata": {},
"cell_type": "code",
"outputs": [],
"execution_count": null,
"source": [
"import supervision as sv\n",
"\n",
"video = sv.download_assets(sv.VideoAssets.GROCERY_STORE)\n",
"\n",
"# Seek directly to frame 800 using the start parameter (O(1) seek)\n",
"frame = next(sv.get_video_frames_generator(video, start=800))\n",
"\n",
"sv.plot_image(frame)"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "tgejF7Zlosyd"
},
"source": [
"## Detecting Faces\n",
"\n",
"Now that we've got our image we'll need a good face detecting model. For this task, there are already an impressive amount of open source models available on [Roboflow Universe](https://universe.roboflow.com/). After a little digging, this [face detection model](https://universe.roboflow.com/mohamed-traore-2ekkp/face-detection-mik1i) has over 1300 images. Some models, including this one, require a Roboflow API key. You can [create a free account here](https://app.roboflow.com/login). From there, you can find the key under Settings > Workspaces > Roboflow API. Let's give it a try."
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"colab": {
"base_uri": "https://localhost:8080/"
},
"id": "3MDjVxEzKWGn",
"outputId": "8fee3446-cc81-4e3c-c4a0-b531d286f1a4"
},
"outputs": [],
"source": [
"import os\n",
"from inference_sdk import InferenceHTTPClient\n",
"\n",
"try:\n",
" from google.colab import userdata\n",
" ROBOFLOW_API_KEY = userdata.get(\"ROBOFLOW_API_KEY\") or \"\"\n",
"except ImportError:\n",
" ROBOFLOW_API_KEY = os.environ.get(\"ROBOFLOW_API_KEY\", \"\")\n",
"\n",
"assert ROBOFLOW_API_KEY, \"Set ROBOFLOW_API_KEY in Colab secrets or as env var\"\n",
"\n",
"client = InferenceHTTPClient(\n",
" api_url=\"https://detect.roboflow.com\",\n",
" api_key=ROBOFLOW_API_KEY\n",
")\n",
"\n",
"results = client.infer(frame, model_id=\"face-detection-mik1i/18\")\n",
"\n",
"print(f\"Detected {len(results['predictions'])} face(s)\")\n",
"print(results)"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "dkPMOHa_univ"
},
"source": [
"## Blurring the Face\n",
"\n",
"Now that we're detecting faces, bluring them is easy with supervision. Let's pass our results into a `Detections` object and annotate the frame with a `BlurAnnotator`."
]
},
{
"metadata": {},
"cell_type": "code",
"outputs": [],
"execution_count": null,
"source": [
"blur = sv.BlurAnnotator(kernel_size=100)\n",
"\n",
"detections = sv.Detections.from_inference(results)\n",
"\n",
"annotated_frame = blur.annotate(scene=frame.copy(), detections=detections)\n",
"\n",
"sv.plot_image(annotated_frame)"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "YVNe8oe4vY4N"
},
"source": [
"## Conclusion\n",
"\n",
"With supervision, inference, and Roboflow Universe we were able to blur faces in minutes with an open source model. There are many other impressive use cases out there, so feel free to share in your own cookbooks. Happy building!"
]
}
],
"metadata": {
"accelerator": "GPU",
"colab": {
"cell_execution_strategy": "setup",
"gpuType": "T4",
"provenance": []
},
"kernelspec": {
"display_name": "Python 3",
"name": "python3"
},
"language_info": {
"name": "python"
}
},
"nbformat": 4,
"nbformat_minor": 0
}

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@ -34,10 +34,6 @@
<p class="card repo-card" data-name="Object Tracking" data-labels="TRACKING, ANNOTATOR" data-version="v0.18.0"
data-author="nickherrig"></p>
</a>
<a href="../notebooks/blurring-faces/">
<p class="card repo-card" data-name="Blurring Faces" data-labels="ANNOTATOR,API,UNIVERSE"
data-version="v0.18.0" data-author="nickherrig"></p>
</a>
<a href="../notebooks/occupancy_analytics/">
<p class="card repo-card" data-name="Analyzing Zone Occupancy" data-labels="ANNOTATOR,DETECTION,ZONES"
data-version="v0.26.0" data-author="stellasphere"></p>
@ -62,14 +58,6 @@
<p class="card repo-card" data-name="Understand Visitors with YOLO-World"
data-labels="ANNOTATORS,DETECTION,INFERENCE" data-version="v0.19.0" data-author="AdonaiVera"></p>
</a>
<a href="../notebooks/compact-mask-sam3/">
<p class="card repo-card" data-name="Memory-Efficient Instance Segmentation"
data-labels="COMPACT MASK,SAM3,SEGMENTATION" data-version="v0.28.0" data-author="Borda"></p>
</a>
<a href="../notebooks/oriented-bounding-boxes/">
<p class="card repo-card" data-name="Oriented Bounding Boxes for Densely Packed Objects"
data-labels="OBB,DETECTIONS,NMS,DATASET" data-version="v0.29.0" data-author="kounelisagis"></p>
</a>
</div>
</div>
</section>

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@ -120,7 +120,7 @@
"name": "How do I install supervision?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Install supervision with pip: pip install supervision. For optional metric dependencies use pip install supervision[metrics]. Sample asset utilities are included in the base package under supervision.assets. The current package metadata requires Python 3.10+."
"text": "Install supervision with pip: pip install supervision. For optional metric dependencies use pip install supervision[metrics]. Sample asset utilities are included in the base package under supervision.assets. The current package metadata requires Python 3.9+."
}
},
{

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@ -1,12 +1,8 @@
---
comments: true
description: API reference for supervision's deprecated ByteTrack tracker wrapper.
description: API reference for supervision's object trackers — ByteTrack and SORT implementations that assign persistent IDs across video frames.
---
# ByteTrack
!!! warning "Deprecated"
`sv.ByteTrack` is deprecated in `supervision-0.28.0` and will be removed in `supervision-0.31.0`. Install `trackers` and use `ByteTrackTracker` instead.
:::supervision.tracker.byte_tracker.core.ByteTrack

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@ -1,36 +0,0 @@
---
comments: true
status: new
---
# Conversion Utils
<div class="md-typeset">
<h2><a href="#supervision.utils.conversion.cv2_to_pillow">cv2_to_pillow</a></h2>
</div>
:::supervision.utils.conversion.cv2_to_pillow
<div class="md-typeset">
<h2><a href="#supervision.utils.conversion.pillow_to_cv2">pillow_to_cv2</a></h2>
</div>
:::supervision.utils.conversion.pillow_to_cv2
<div class="md-typeset">
<h2><a href="#supervision.utils.conversion.ensure_cv2_image_for_annotation">ensure_cv2_image_for_annotation</a></h2>
</div>
:::supervision.utils.conversion.ensure_cv2_image_for_annotation
<div class="md-typeset">
<h2><a href="#supervision.utils.conversion.ensure_pil_image_for_annotation">ensure_pil_image_for_annotation</a></h2>
</div>
:::supervision.utils.conversion.ensure_pil_image_for_annotation
<div class="md-typeset">
<h2><a href="#supervision.utils.conversion.images_to_cv2">images_to_cv2</a></h2>
</div>
:::supervision.utils.conversion.images_to_cv2

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@ -13,21 +13,3 @@ comments: true
</div>
:::supervision.geometry.core.Position
<div class="md-typeset">
<h2><a href="#supervision.geometry.core.Point">Point</a></h2>
</div>
:::supervision.geometry.core.Point
<div class="md-typeset">
<h2><a href="#supervision.geometry.core.Rect">Rect</a></h2>
</div>
:::supervision.geometry.core.Rect
<div class="md-typeset">
<h2><a href="#supervision.geometry.core.Vector">Vector</a></h2>
</div>
:::supervision.geometry.core.Vector

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@ -11,12 +11,6 @@ status: new
:::supervision.utils.image.crop_image
<div class="md-typeset">
<h2><a href="#supervision.utils.image.load_image_from_url">load_image_from_url</a></h2>
</div>
:::supervision.utils.image.load_image_from_url
<div class="md-typeset">
<h2><a href="#supervision.utils.image.scale_image">scale_image</a></h2>
</div>

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@ -1,12 +0,0 @@
---
comments: true
status: new
---
# Image Window
<div class="md-typeset">
<h2><a href="#supervision.utils.image_window.ImageWindow">ImageWindow</a></h2>
</div>
:::supervision.utils.image_window.ImageWindow

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@ -2,7 +2,7 @@
This example benchmarks `CompactMask`, a new mask representation introduced in `supervision` that replaces dense `(N, H, W)` boolean arrays with a crop-scoped Run-Length Encoding (RLE). The benchmark demonstrates full API compatibility, massive memory savings, and order-of-magnitude annotation speedups — with no change to your existing `Detections` code.
______________________________________________________________________
---
## The Problem
@ -16,7 +16,7 @@ For a 4K image with 1 000 detected objects:
At this scale, typical pipelines crash with `MemoryError` before a single frame is annotated. Aerial imagery, satellite tiles, and high-density crowd scenes all hit this wall.
______________________________________________________________________
---
## The Solution — Crop-RLE Storage
@ -95,7 +95,7 @@ Crop RLE's `.crop()` method powers the `MaskAnnotator` optimisation — it never
At N=1 000 with 1 % overlap, bbox pre-filter reduces 499 500 candidate pairs to ~5 000 overlapping pairs — a ~2 000x reduction in pixel-level work.
______________________________________________________________________
---
## Why Crop-RLE Was Chosen over Local Crop
@ -107,7 +107,7 @@ Both formats compress extremely well; the deciding factors for Crop-RLE are:
The main trade-off: crop-only decode is O(A) rather than O(1). For the common solid-fill segmentation mask this is negligible (\<0.1 ms per mask).
______________________________________________________________________
---
## Operation-by-Operation Speedup Analysis
@ -115,7 +115,7 @@ This section walks through every `Detections` operation that touches masks and s
At 50% fill on an FHD image each mask's bounding box covers a large portion of the frame, producing many RLE runs per row.
______________________________________________________________________
---
### Memory
@ -146,7 +146,7 @@ Scaled to N=200: 200 x 4.7 KB = ~933 KB of RLE data, plus `_crop_shapes` (1.6 KB
At 5% fill with 8-vertex polygons, the ratio reaches 10 000x20 000x because crops are tiny and RLEs are extremely short. The benchmark's 4K-200-5%-v8 scenario measures 21 786x (theory) / ~6 000x (malloc). The SAT-200-5%-v8 scenario reaches 62 968x theoretical.
______________________________________________________________________
---
### `.area`
@ -179,7 +179,7 @@ At FHD-200-50%-v600, dense `.area` takes 84.66 ms; compact takes 0.48 ms — a *
| No (H, W) allocation per mask | latency |
| **Combined** | **~1 000x** |
______________________________________________________________________
---
### `filter` / `__getitem__` (boolean index)
@ -212,7 +212,7 @@ At FHD-200-50%-v600, dense `filter` takes 14.56 ms; compact takes 0.03 ms — a
| Allocation | new `(K, H, W)` array | new `CompactMask` shell (~trivial) |
| **Speedup** | | **hundreds to tens of thousands x** |
______________________________________________________________________
---
### `annotate` (`MaskAnnotator`)
@ -246,7 +246,7 @@ colored_mask[y1 : y1 + crop_h, x1 : x1 + crop_w][crop_m] = color.as_bgr()
| x N masks | compounds |
| **Combined** | **~26 400x** |
______________________________________________________________________
---
### IoU (`mask_iou_batch` / `compact_mask_iou_batch`)
@ -315,7 +315,7 @@ At FHD-200-50%-v600, dense IoU takes 23 915 ms; compact takes 51.58 ms — a **4
At 20% fill the gaps close — more pairs overlap, larger crops — speedup drops toward the lower end of the range.
______________________________________________________________________
---
### NMS (`mask_non_max_suppression`)
@ -339,7 +339,7 @@ All three IoU optimisations apply to the compact path:
At FHD-200-50%-v600, dense NMS takes 5 231 ms; compact takes 48.15 ms — a **481x speedup**. Dense IoU/NMS is skipped for scenarios above 1 GB (4K-200 and SAT-200 tiers); compact NMS still runs on those.
______________________________________________________________________
---
### `merge` (`Detections.merge`)
@ -387,7 +387,7 @@ if len(self.xyxy) > 0:
This O(1) check avoids the O(N x H x W) dense materialisation that previously dominated compact merge time.
______________________________________________________________________
---
### `offset` / `with_offset` (`InferenceSlicer` tile stitching)
@ -425,7 +425,7 @@ At FHD-200-50%-v600, dense offset takes 42.30 ms; compact takes 0.02 ms — a **
In the `InferenceSlicer` pipeline the canvas is always expanded by the tile offset, so no crop ever overflows — the fast path is always taken. Clipping only activates for objects that genuinely straddle the image boundary.
______________________________________________________________________
---
### `centroids` (`calculate_masks_centroids`)
@ -460,7 +460,7 @@ At FHD-200-50%-v600, dense centroids takes 1 133.68 ms; compact takes 60.39 ms
| No global `np.indices((H, W))` allocation | saves large float64 |
| **Combined (N=200)** | **~19 1 000x** |
______________________________________________________________________
---
### Summary
@ -480,7 +480,7 @@ Measured speedups at the **FHD-200-50%-v600** operating point (dense fill, compl
All speedups are larger at sparser fill fractions and larger resolutions. At SAT-200-20%-v128, `.area` reaches 1 204x and `merge` reaches 89 046x. At the sparsest scenarios (5% fill, 8-vertex polygons), memory ratios exceed 60 000x.
______________________________________________________________________
---
## Drop-In Compatibility
@ -517,7 +517,7 @@ Supported indexing patterns:
| `mask[slice]` | New `CompactMask` |
| `np.asarray(mask)` | Dense `(N, H, W)` bool array |
______________________________________________________________________
---
## Benchmark
@ -527,69 +527,6 @@ Run on any machine — no GPU or real model required:
uv run python examples/compact_mask/benchmark.py
```
For a focused benchmark of the Roboflow inference-result parser API, run:
```bash
uv run python examples/compact_mask/bench_inference_api.py
```
This script downloads all supervision image assets plus the middle frame from every supervision video asset by default, runs one real segmentation inference per source image, requests native RLE masks from Inference, freezes that result, and then compares parser performance:
```python
sv.Detections.from_inference(result)
sv.Detections.from_inference(result, compact_masks=True)
```
Timing repetitions, warmups, confidence, IoU, response mask format, and the default model live as constants in `bench_inference_api.py`.
Inference runs and segmentation-derived box fields are outside the timed benchmark loop. By default the script uses `rfdetr-seg-large` with `response_mask_format="rle"`; set `BENCH_INFERENCE_MODEL_ID` to override the model. Set `ROBOFLOW_API_KEY` when your model requires authentication. Sources where the model returns no native RLE segmentation masks are skipped because there is no RLE parser work to benchmark. `rfdetr-large` is a valid local Inference model id, but it is object detection only; use an `rfdetr-seg-*` model for instance segmentation.
Run one specific supervision image or video asset with `--asset`:
```bash
uv run python examples/compact_mask/bench_inference_api.py --asset people-walking
uv run python examples/compact_mask/bench_inference_api.py --asset soccer
uv run python examples/compact_mask/bench_inference_api.py --asset vehicles
uv run python examples/compact_mask/bench_inference_api.py --asset people-walking-video
```
The output reports image size, segmented objects, median parser time, peak traced allocations, mask storage, and parser speedup (`dense parser time / compact parser time`).
**Speedup column:** The `speedup` value reflects allocation savings — how much time is saved by skipping the dense `(N, H, W)` bool-stack allocation — not a faster RLE decode. Compact RLE arithmetic is typically slower than the dense NumPy path. The net result:
- **Compact is faster** only when the dense `(N, H, W)` bool-stack allocation dominates — large images with many sparse masks where avoiding that allocation outweighs the RLE arithmetic cost.
- **Compact is slower** for small images or dense/overlapping masks, where Python RLE arithmetic dominates and the allocation cost is negligible.
- **The primary guaranteed benefit is memory**: compact masks use roughly 99% less memory than dense stacks for typical segmentation output, regardless of which parse direction is faster.
The default run includes a `synthetic-dense-64` row (64×64 image, 4 fully-filled masks) to demonstrate the adversarial regime where compact is slower than dense. For each real source with segmentation masks, the script also writes a validation overlay to `examples/compact_mask/outputs/*_segmentations.jpg`.
### Sample results — inference API
Measured on macOS Apple M4 Max, 50 reps after 3 warmups, using `rfdetr-seg-large` via Roboflow Inference.
| src | res | seg | dense ms | CM ms | speedup | peak MB (dense/compact) | mask MB (dense/compact) | ok |
| -------------------------- | --------- | --- | -------- | ----- | ------- | ----------------------- | ----------------------- | --- |
| synthetic-dense-64 | 64×64 | 4 | 0.03 | 0.11 | 0.31× | 0.04 / 0.05 | 0.02 / 0.00 | ✓ |
| people-walking.jpg | 1920×1080 | 53 | 85.56 | 12.55 | 6.82× | 219.86 / 0.11 | 109.90 / 0.02 | ✓ |
| soccer.jpg | 398×224 | 21 | 1.36 | 1.07 | 1.27× | 3.77 / 0.05 | 1.87 / 0.00 | ✓ |
| vehicles.mp4#269 | 3840×2160 | 7 | 46.03 | 2.60 | 18× | 116.13 / 0.07 | 58.06 / 0.00 | ✓ |
| milk-bottling-plant.mp4#94 | 1920×1080 | 9 | 15.61 | 11.57 | 1.35× | 37.34 / 0.53 | 18.66 / 0.03 | ✓ |
| vehicles-2.mp4#637 | 1920×1080 | 47 | 76.87 | 13.59 | 5.66× | 194.97 / 0.13 | 97.46 / 0.03 | ✓ |
| grocery-store.mp4#501 | 3840×2160 | 4 | 27.20 | 4.36 | 6.24× | 66.36 / 0.22 | 33.18 / 0.01 | ✓ |
| subway.mp4#649 | 2160×3840 | 42 | 325.71 | 32.21 | 10× | 696.78 / 0.80 | 348.36 / 0.09 | ✓ |
| market-square.mp4#237 | 2160×3840 | 96 | 732.98 | 27.24 | 27× | 1592.61 / 0.22 | 796.26 / 0.05 | ✓ |
| people-walking.mp4#170 | 1920×1080 | 60 | 100.99 | 12.69 | 7.96× | 248.89 / 0.12 | 124.42 / 0.02 | ✓ |
| beach-1.mp4#223 | 3840×2160 | 33 | 223.50 | 13.39 | 17× | 547.47 / 0.12 | 273.72 / 0.02 | ✓ |
| basketball-1.mp4#238 | 1920×1080 | 2 | 3.61 | 2.05 | 1.76× | 8.30 / 0.15 | 4.15 / 0.01 | ✓ |
| skiing.mp4#176 | 1920×1080 | 11 | 16.47 | 3.07 | 5.37× | 45.63 / 0.08 | 22.81 / 0.01 | ✓ |
- **seg** — number of instance segmentations returned by the model
- **dense ms / CM ms** — median parse time for `from_inference()` vs `from_inference(compact_masks=True)`
- **speedup** — dense / compact parse time; values below 1× (e.g., synthetic-dense-64) indicate the adversarial regime where RLE arithmetic cost exceeds allocation savings
- **peak MB** — peak traced allocations during parsing (dense / compact)
- **mask MB** — mask storage only (dense / compact); compact is typically 1005 000× smaller
- **ok**`compact.to_dense()` pixel-exactly matches dense masks
Six image tiers x three fill fractions (5 / 20 / 50 %) x three vertex counts (8 / 128 / 600):
| Tier | Resolution | Objects | Dense array | Notes |
@ -626,7 +563,7 @@ Dense timing is skipped automatically when the dense IoU/NMS array would exceed
All non-skipped scenarios pass: pixel-perfect annotation, exact area, lossless `to_dense()` roundtrip.
______________________________________________________________________
---
## Use-Cases
@ -636,7 +573,7 @@ ______________________________________________________________________
- **Long-running tracking** — accumulated `Detections` across many frames stay in kilobytes rather than gigabytes.
- **`InferenceSlicer`** — `with_offset()` adjusts crop origins directly when stitching tile results; no dense materialisation needed.
______________________________________________________________________
---
## Limitations
@ -644,12 +581,11 @@ ______________________________________________________________________
- RLE format is **column-major (F-order), crop-scoped** — pixel-scan order matches COCO / pycocotools, but crop scope differs from full-image scope. Use `.to_dense()` to materialize a full-image dense mask, then encode that mask to COCO RLE before passing it to pycocotools.
- `from_dense()` requires the input `(N, H, W)` array to fit in memory. For truly OOM-scale data, build `CompactMask` per-detection directly from model output crops rather than from a pre-allocated dense stack.
______________________________________________________________________
---
## Files
| File | Description |
| ------------------------ | --------------------------------------------------- |
| `benchmark.py` | Full benchmark across FHD / 4K / satellite tiers |
| `bench_inference_api.py` | Focused dense vs compact `from_inference` benchmark |
| `README.md` | This file |
| File | Description |
| -------------- | ------------------------------------------------ |
| `benchmark.py` | Full benchmark across FHD / 4K / satellite tiers |
| `README.md` | This file |

View File

@ -1,505 +0,0 @@
"""Benchmark dense vs compact Roboflow RLE ingestion.
Run with:
uv run python examples/compact_mask/bench_inference_api.py
The benchmark downloads supervision assets, runs one segmentation inference per
source image, then times dense vs compact parsing of that fixed inference result.
"""
from __future__ import annotations
import argparse
import gc
import os
import statistics
import time
import tracemalloc
from collections.abc import Callable
from dataclasses import dataclass
from pathlib import Path
from typing import Any
import cv2
import numpy as np
from rich import box
from rich.console import Console
from rich.table import Table
import supervision as sv
from supervision.assets import ImageAssets, VideoAssets, download_assets
from supervision.config import CLASS_NAME_DATA_FIELD
from supervision.detection.compact_mask import CompactMask
console = Console(width=120, force_terminal=True)
# Default segmentation model; use an rfdetr-seg-* id so masks are returned.
MODEL_ID = "rfdetr-seg-large"
# Environment variable that can override MODEL_ID without adding CLI noise.
MODEL_ID_ENV = "BENCH_INFERENCE_MODEL_ID"
# Optional Roboflow API key for models that require authentication.
API_KEY_ENV = "ROBOFLOW_API_KEY"
# Model confidence threshold used only for the one inference call per source.
CONFIDENCE = 0.2
# Model IoU threshold used only for the one inference call per source.
IOU = 0.5
# Request native RLE masks so the benchmark measures RLE parser ingestion.
RESPONSE_MASK_FORMAT = "rle"
# Parser timing repetitions; inference itself is not repeated.
REPETITIONS = 50
# Untimed parser warmup calls before measurements.
WARMUP = 3
# Visual segmentation overlays for manual validation.
ARTIFACT_DIR = Path("examples/compact_mask/outputs")
ASSETS = {Path(asset.filename).stem: asset for asset in ImageAssets}
for video_asset in VideoAssets:
key = Path(video_asset.filename).stem
ASSETS[key if key not in ASSETS else f"{key}-video"] = video_asset
@dataclass
class ApiBenchmarkResult:
"""Result for one dense-vs-compact parser benchmark run."""
source: str
resolution: str
segmented_objects: int
dense_s: float
compact_s: float
dense_peak_bytes: int
compact_peak_bytes: int
dense_mask_bytes: int
compact_mask_bytes: int
pixel_perfect: bool
def load_image_from_asset(path: Path | None, asset: str) -> tuple[np.ndarray, str]:
"""Return ``(image, label)`` for an image or video middle frame."""
if path is not None:
image = cv2.imread(str(path))
if image is None:
raise FileNotFoundError(f"Could not read image: {path}")
return image, str(path)
asset_obj = ASSETS[asset]
asset_path = Path(download_assets(asset_obj))
if isinstance(asset_obj, ImageAssets):
image = cv2.imread(str(asset_path))
if image is None:
raise FileNotFoundError(f"Could not read image: {asset_path}")
return image, str(asset_path)
video = cv2.VideoCapture(str(asset_path))
if not video.isOpened():
raise FileNotFoundError(f"Could not read video: {asset_path}")
frame_count = int(video.get(cv2.CAP_PROP_FRAME_COUNT))
frame_index = max(0, frame_count // 2)
if frame_index:
video.set(cv2.CAP_PROP_POS_FRAMES, frame_index)
ok, frame = video.read()
video.release()
if not ok or frame is None:
raise FileNotFoundError(f"Could not read middle frame: {asset_path}")
return frame, f"{asset_path}#{frame_index}"
def freeze_result(inference_result: Any) -> dict[str, Any]:
"""Convert one Inference result to a reusable dictionary."""
if isinstance(inference_result, dict):
return inference_result
if hasattr(inference_result, "model_dump"):
return inference_result.model_dump(exclude_none=True, by_alias=True)
if hasattr(inference_result, "dict"):
return inference_result.dict(exclude_none=True, by_alias=True)
raise TypeError(
f"Expected dict-like Inference result, got {type(inference_result).__name__}"
)
def count_rle_predictions(result: dict[str, Any]) -> int:
"""Return the number of predictions carrying Roboflow RLE masks."""
return sum(
isinstance(prediction.get("rle") or prediction.get("rle_mask"), dict)
for prediction in result.get("predictions", [])
)
def synthetic_dense_small_result() -> tuple[np.ndarray, str, dict[str, Any]]:
"""Return a small dense-mask adversarial payload where compact parsing is slower.
Uses a 64x64 image with 4 fully-filled masks. At this scale the dense
``(N, H, W)`` allocation cost is negligible; Python RLE arithmetic dominates,
making compact ingestion slower than the dense NumPy path. Included as a
clearly labeled adversarial row in the default benchmark run to show that
the ``speedup`` column reflects allocation savings, not decode speed.
"""
height, width = 64, 64
image = np.zeros((height, width, 3), dtype=np.uint8)
predictions = [
{
"x": width / 2,
"y": height / 2,
"width": width,
"height": height,
"confidence": 0.9,
"class_id": index,
"class": f"dense-{index}",
"rle": {"size": [height, width], "counts": [0, height * width]},
}
for index in range(4)
]
return (
image,
"synthetic-dense-64",
{
"predictions": predictions,
"image": {"width": width, "height": height},
},
)
def derive_boxes_from_rle_masks(result: dict[str, Any]) -> dict[str, Any]:
"""Set prediction boxes from native RLE segmentation masks."""
predictions = []
for prediction in result.get("predictions", []):
rle = prediction.get("rle") or prediction.get("rle_mask")
if not isinstance(rle, dict):
predictions.append(prediction)
continue
height, width = rle["size"]
mask = sv.rle_to_mask(rle["counts"], resolution_wh=(int(width), int(height)))
if not mask.any():
predictions.append(prediction)
continue
x1, y1, x2, y2 = sv.mask_to_xyxy(mask[np.newaxis, ...])[0]
predictions.append(
{
**prediction,
"x": float((x1 + x2) / 2),
"y": float((y1 + y2) / 2),
"width": float(x2 - x1),
"height": float(y2 - y1),
}
)
return {**result, "predictions": predictions}
def artifact_path(source: str) -> Path:
"""Return the segmentation validation artifact path for a source."""
source_path, separator, frame = source.partition("#")
stem = Path(source_path).stem
suffix = f"_frame_{frame}" if separator else ""
return ARTIFACT_DIR / f"{stem}{suffix}_segmentations.jpg"
def detection_labels(detections: sv.Detections) -> list[str]:
"""Return compact class/confidence labels for validation artifacts."""
raw_class_names = detections.get_data(CLASS_NAME_DATA_FIELD)
class_names = (
raw_class_names.astype(str).tolist()
if isinstance(raw_class_names, np.ndarray)
else [""] * len(detections)
)
labels = []
for index in range(len(detections)):
class_name = class_names[index] if index < len(class_names) else ""
confidence = (
""
if detections.confidence is None
else f" {detections.confidence[index]:.2f}"
)
labels.append(f"{class_name}{confidence}".strip() or str(index))
return labels
def save_segmentation_artifact(
image: np.ndarray,
result: dict[str, Any],
source: str,
) -> Path | None:
"""Draw parsed segmentation masks and save a validation artifact."""
detections = sv.Detections.from_inference(result)
if detections.mask is None:
return None
annotated = image.copy()
annotated = sv.MaskAnnotator(
color_lookup=sv.ColorLookup.INDEX,
opacity=0.45,
).annotate(scene=annotated, detections=detections)
annotated = sv.LabelAnnotator(
color_lookup=sv.ColorLookup.INDEX,
text_scale=0.35,
text_padding=4,
).annotate(
scene=annotated,
detections=detections,
labels=detection_labels(detections),
)
path = artifact_path(source)
path.parent.mkdir(parents=True, exist_ok=True)
if not cv2.imwrite(str(path), annotated):
raise OSError(f"Could not write segmentation artifact: {path}")
return path
def load_inference_model(model_id: str, api_key: str | None) -> Any:
"""Load the requested Inference model."""
try:
from inference import get_model
except ImportError as exc:
raise ImportError(
"Install the `inference` package to run this benchmark."
) from exc
model_kwargs = {"api_key": api_key} if api_key is not None else {}
return get_model(model_id=model_id, **model_kwargs)
def run_inference_once(
image: np.ndarray,
model: Any,
model_id: str,
confidence: float,
iou: float,
) -> dict[str, Any] | None:
"""Run one real segmentation inference and return a frozen result."""
# Inference still serializes instance segmentations with x/y/width/height.
# Derive those fields from the RLE masks so the benchmark uses segmentations,
# not the model-reported detector boxes, as the source of truth.
result = derive_boxes_from_rle_masks(
freeze_result(
model.infer(
image,
confidence=confidence,
iou=iou,
response_mask_format=RESPONSE_MASK_FORMAT,
)[0]
)
)
rle_count = count_rle_predictions(result)
if rle_count == 0:
console.print(
f"[yellow]skipped[/yellow] {model_id}: no native RLE segmentation "
f"predictions for response_mask_format={RESPONSE_MASK_FORMAT!r}"
)
return None
return result
def median_seconds(fn: Callable[[], object], reps: int, warmup: int) -> float:
"""Return median runtime for ``fn``."""
for _ in range(warmup):
fn()
gc.collect()
timings = []
for _ in range(reps):
start = time.perf_counter()
fn()
timings.append(time.perf_counter() - start)
return statistics.median(timings)
def peak_bytes(fn: Callable[[], object]) -> int:
"""Return peak traced allocations for one call."""
gc.collect()
tracemalloc.start()
fn()
_, peak = tracemalloc.get_traced_memory()
tracemalloc.stop()
return int(peak)
def dense_mask_bytes(detections: sv.Detections) -> int:
"""Return dense mask storage bytes."""
return 0 if detections.mask is None else int(np.asarray(detections.mask).nbytes)
def compact_mask_bytes(detections: sv.Detections) -> int:
"""Return compact mask storage bytes."""
if not isinstance(detections.mask, CompactMask):
return 0
return sum(rle.nbytes for rle in detections.mask._rles)
def _fmt_ratio(ratio: float) -> str:
"""Format a speedup/compression ratio with colour coding."""
fmt = f"{ratio:.0f}x" if ratio >= 10 else f"{ratio:.2f}x"
if ratio >= 10:
return f"[green]{fmt}[/green]"
elif ratio >= 1:
return f"[yellow]{fmt}[/yellow]"
else:
return f"[red]{fmt}[/red]"
def _fmt_mb(num_bytes: int) -> str:
"""Format bytes as compact megabytes."""
return f"{num_bytes / 1e6:.2f}"
def run_benchmark(
source: str,
image: np.ndarray,
result: dict[str, Any],
reps: int,
warmup: int,
) -> ApiBenchmarkResult:
"""Run one dense-vs-compact parser benchmark."""
# Benchmark the public Roboflow/Inference adapter; RLE masks enter through
# the result payload and should stay compact when compact_masks=True.
def dense() -> sv.Detections:
return sv.Detections.from_inference(result)
def compact() -> sv.Detections:
return sv.Detections.from_inference(result, compact_masks=True)
dense_once = dense()
compact_once = compact()
if not isinstance(dense_once.mask, np.ndarray):
raise TypeError(f"Expected dense ndarray mask, got {type(dense_once.mask)}")
if not isinstance(compact_once.mask, CompactMask):
raise TypeError(f"Expected CompactMask, got {type(compact_once.mask)}")
np.testing.assert_array_equal(compact_once.mask.to_dense(), dense_once.mask)
dense_s = median_seconds(dense, reps, warmup)
compact_s = median_seconds(compact, reps, warmup)
dense_peak = peak_bytes(dense)
compact_peak = peak_bytes(compact)
return ApiBenchmarkResult(
source=source,
resolution=f"{image.shape[1]}x{image.shape[0]}",
segmented_objects=len(dense_once),
dense_s=dense_s,
compact_s=compact_s,
dense_peak_bytes=dense_peak,
compact_peak_bytes=compact_peak,
dense_mask_bytes=dense_mask_bytes(dense_once),
compact_mask_bytes=compact_mask_bytes(compact_once),
pixel_perfect=True,
)
def print_summary(results: list[ApiBenchmarkResult], reps: int, warmup: int) -> None:
"""Print a Rich summary table matching the compact mask benchmark style."""
table = Table(
title="CompactMask from_inference",
box=box.ROUNDED,
show_lines=False,
header_style="bold cyan",
)
table.add_column("src", style="bold", no_wrap=True)
table.add_column("res", no_wrap=True)
table.add_column("seg", justify="right")
table.add_column("dense ms", justify="right")
table.add_column("CM ms", justify="right", style="green")
table.add_column("speedup", justify="right")
table.add_column("peak MB", justify="right", style="cyan")
table.add_column("mask MB", justify="right")
table.add_column("ok", justify="center")
for result in results:
speedup = result.dense_s / max(result.compact_s, 1e-9)
table.add_row(
result.source,
result.resolution,
str(result.segmented_objects),
f"{result.dense_s * 1e3:.2f}",
f"{result.compact_s * 1e3:.2f}",
_fmt_ratio(speedup),
f"{_fmt_mb(result.dense_peak_bytes)}/{_fmt_mb(result.compact_peak_bytes)}",
f"{_fmt_mb(result.dense_mask_bytes)}/{_fmt_mb(result.compact_mask_bytes)}",
"[green]✓[/green]" if result.pixel_perfect else "[red]✗[/red]",
)
console.print(table)
console.print(
"[dim]"
+ " · ".join(
[
f"timings are median of {reps} reps after {warmup} warmups",
"peak MB and mask MB are dense/compact",
"speedup = dense / compact parse time; gains are allocation-driven"
" (avoiding the dense (N,H,W) bool-stack), not faster RLE decode",
"compact RLE arithmetic is typically slower than the dense NumPy path"
" — synthetic-dense-64 shows this adversarial regime (speedup < 1x)",
"OK means compact.to_dense() exactly matches dense masks",
]
)
+ "[/dim]"
)
def main() -> None:
"""Run the benchmark."""
parser = argparse.ArgumentParser()
parser.add_argument("--asset", choices=ASSETS.keys(), default=None)
parser.add_argument("--image", type=Path, default=None)
args = parser.parse_args()
assets = [args.asset] if args.asset is not None else list(ASSETS)
if args.image is not None:
assets = ["custom"]
results = []
if args.asset is None and args.image is None:
image, source, inference_result = synthetic_dense_small_result()
console.rule(f"[bold]{source}[/bold] | {image.shape[1]}x{image.shape[0]}")
results.append(
run_benchmark(
source=source,
image=image,
result=inference_result,
reps=REPETITIONS,
warmup=WARMUP,
)
)
model_id = os.getenv(MODEL_ID_ENV, MODEL_ID)
model = load_inference_model(model_id=model_id, api_key=os.getenv(API_KEY_ENV))
for asset in assets:
image, source = load_image_from_asset(args.image, asset)
console.rule(f"[bold]{source}[/bold] | {image.shape[1]}x{image.shape[0]}")
inference_result = run_inference_once(
image=image,
model=model,
model_id=model_id,
confidence=CONFIDENCE,
iou=IOU,
)
if inference_result is None:
continue
console.print(
f"[dim]captured {count_rle_predictions(inference_result)} RLE masks "
f"from {model_id}[/dim]"
)
artifact = save_segmentation_artifact(
image=image,
result=inference_result,
source=source,
)
if artifact is not None:
console.print(f"[dim]saved segmentation artifact: {artifact}[/dim]")
results.append(
run_benchmark(
source=source,
image=image,
result=inference_result,
reps=REPETITIONS,
warmup=WARMUP,
)
)
if not results:
raise ValueError(f"Model {model_id!r} returned no segmentation masks.")
print_summary(results, reps=REPETITIONS, warmup=WARMUP)
if __name__ == "__main__":
main()

View File

@ -2,9 +2,7 @@
Demonstrates that ``CompactMask`` is a drop-in replacement for dense
``(N, H, W)`` bool arrays in ``supervision.Detections``, while using
significantly less memory and enabling faster annotation. The annotation
timing reports frame size, detection count, mask area ratio, and
``MaskAnnotator`` speedup from ROI-only blending.
significantly less memory and enabling faster annotation.
Run with:
uv run python examples/compact_mask/benchmark.py
@ -14,17 +12,19 @@ Mask complexity is controlled by ``num_vertices``: random polygons with more
vertices produce jaggier boundaries and more RLE runs per row.
"""
from __future__ import annotations
import dataclasses
import gc
import json
import math
import time
import tracemalloc
from collections.abc import Callable
from concurrent.futures import ThreadPoolExecutor
from dataclasses import dataclass, field
from datetime import datetime, timezone
from pathlib import Path
from typing import Callable
import cv2
import numpy as np
@ -74,7 +74,7 @@ class ScenarioResult:
name: str
resolution: str # e.g. "1920x1080"
num_objects: int
fill_name: str # mask area ratio, e.g. "5%"
fill_name: str # e.g. "5%"
num_vertices: int # polygon vertex count — complexity proxy
# memory (theoretical: raw numpy nbytes)
dense_bytes: int
@ -956,7 +956,7 @@ def print_summary(results: list[ScenarioResult]) -> None:
table.add_column("Scenario", style="bold", min_width=22)
table.add_column("Objects", justify="right", min_width=7)
table.add_column("Resolution", min_width=12, no_wrap=True)
table.add_column("Mask\narea", justify="right", min_width=5, no_wrap=True)
table.add_column("Fill", justify="right", min_width=5, no_wrap=True)
table.add_column("Vertices", justify="right", min_width=8, no_wrap=True)
table.add_column("Dense\ntheory", justify="right", min_width=10)
table.add_column("Compact\ntheory", justify="right", style="green", min_width=9)
@ -1037,8 +1037,7 @@ def print_summary(results: list[ScenarioResult]) -> None:
"Decode ms/mask — to_dense() / N (compact→dense overhead per mask)",
"Area x — .area speedup (RLE sum, no materialisation)",
"Filter x — boolean-index speedup",
"Annot x — MaskAnnotator speedup "
"(ROI-only blend vs full-frame overlay)",
"Annot x — MaskAnnotator speedup (crop-paint vs full-frame alloc)",
f"IoU x — pairwise self-IoU speedup "
f"(dense skipped >{IOU_DENSE_SKIP_GB:.0f} GB)",
"NMS x — mask_non_max_suppression speedup",

View File

@ -1,10 +1,14 @@
# count people in zone
[![Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/roboflow-ai/notebooks/blob/main/notebooks/how-to-detect-and-count-objects-in-polygon-zone.ipynb) [![YouTube](https://badges.aleen42.com/src/youtube.svg)](https://www.youtube.com/watch?v=l_kf9CfZ_8M)
[![Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/roboflow-ai/notebooks/blob/main/notebooks/how-to-detect-and-count-objects-in-polygon-zone.ipynb)
[![YouTube](https://badges.aleen42.com/src/youtube.svg)](https://www.youtube.com/watch?v=l_kf9CfZ_8M)
## 👋 hello
This demo is a video analysis tool that counts and highlights objects in specific zones of a video. Each zone and the objects within it are marked in different colors, making it easy to see and count the objects in each area. The tool can save this enhanced video or display it live on the screen.
This demo is a video analysis tool that counts and highlights objects in specific zones
of a video. Each zone and the objects within it are marked in different colors, making
it easy to see and count the objects in each area. The tool can save this enhanced
video or display it live on the screen.
https://github.com/roboflow/supervision/assets/26109316/f84db7b5-79e2-4142-a1da-64daa43ce667
@ -12,61 +16,76 @@ https://github.com/roboflow/supervision/assets/26109316/f84db7b5-79e2-4142-a1da-
- clone repository and navigate to example directory
```bash
git clone --depth 1 -b develop https://github.com/roboflow/supervision.git
cd supervision/examples/count_people_in_zone
```
```bash
git clone --depth 1 -b develop https://github.com/roboflow/supervision.git
cd supervision/examples/count_people_in_zone
```
- setup python environment and activate it [optional]
```bash
uv venv
source .venv/bin/activate
```
```bash
uv venv
source .venv/bin/activate
```
- install required dependencies
```bash
uv pip install -r requirements.txt
```
```bash
uv pip install -r requirements.txt
```
- download `traffic_analysis.pt` and `traffic_analysis.mov` files
```bash
./setup.sh
```
```bash
./setup.sh
```
## 🛠️ script arguments
- ultralytics
- `--source_weights_path` (optional): The path to the YOLO model's weights file. Defaults to `"yolov8x.pt"` if not specified.
- `--source_weights_path` (optional): The path to the YOLO model's weights file.
Defaults to `"yolov8x.pt"` if not specified.
- `--zone_configuration_path`: Specifies the path to the JSON file containing zone configurations. This file defines the polygonal areas in the video where objects will be counted.
- `--zone_configuration_path`: Specifies the path to the JSON file containing zone
configurations. This file defines the polygonal areas in the video where objects will
be counted.
- `--source_video_path`: The path to the source video file that will be analyzed.
- `--source_video_path`: The path to the source video file that will be analyzed.
- `--target_video_path` (optional): The path to save the output video with annotations. If not provided, the processed video will be displayed in real-time.
- `--target_video_path` (optional): The path to save the output video with annotations.
If not provided, the processed video will be displayed in real-time.
- `--confidence_threshold` (optional): Sets the confidence threshold for the YOLO model to filter detections. Default is `0.3`.
- `--confidence_threshold` (optional): Sets the confidence threshold for the YOLO model
to filter detections. Default is `0.3`.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold for the model. Default is `0.7`.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold
for the model. Default is `0.7`.
- inference
- `--roboflow_api_key` (optional): The API key for Roboflow services. If not provided directly, the script tries to fetch it from the `ROBOFLOW_API_KEY` environment variable. Follow [this guide](https://docs.roboflow.com/api-reference/authentication#retrieve-an-api-key) to acquire your `API KEY`.
- `--roboflow_api_key` (optional): The API key for Roboflow services. If not provided
directly, the script tries to fetch it from the `ROBOFLOW_API_KEY` environment
variable. Follow [this guide](https://docs.roboflow.com/api-reference/authentication#retrieve-an-api-key)
to acquire your `API KEY`.
- `--model_id` (optional): Designates the Roboflow model ID to be used. The default value is `"yolov8x-1280"`.
- `--model_id` (optional): Designates the Roboflow model ID to be used. The default
value is `"yolov8x-1280"`.
- `--zone_configuration_path`: Specifies the path to the JSON file containing zone configurations. This file defines the polygonal areas in the video where objects will be counted.
- `--zone_configuration_path`: Specifies the path to the JSON file containing zone
configurations. This file defines the polygonal areas in the video where objects will
be counted.
- `--source_video_path`: The path to the source video file that will be analyzed.
- `--source_video_path`: The path to the source video file that will be analyzed.
- `--target_video_path` (optional): The path to save the output video with annotations. If not provided, the processed video will be displayed in real-time.
- `--target_video_path` (optional): The path to save the output video with annotations.
If not provided, the processed video will be displayed in real-time.
- `--confidence_threshold` (optional): Sets the confidence threshold for the YOLO model to filter detections. Default is `0.3`.
- `--confidence_threshold` (optional): Sets the confidence threshold for the YOLO model
to filter detections. Default is `0.3`.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold for the model. Default is `0.7`.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold
for the model. Default is `0.7`.
## 📌 zone configuration
@ -79,29 +98,35 @@ https://github.com/roboflow/supervision/assets/26109316/f84db7b5-79e2-4142-a1da-
- ultralytics
```bash
python ultralytics_example.py \
--zone_configuration_path data/multi-zone-config.json \
--source_video_path data/market-square.mp4 \
--confidence_threshold 0.3 \
--iou_threshold 0.5
```
```bash
python ultralytics_example.py \
--zone_configuration_path data/multi-zone-config.json \
--source_video_path data/market-square.mp4 \
--confidence_threshold 0.3 \
--iou_threshold 0.5
```
- inference
```bash
python inference_example.py \
--roboflow_api_key "ROBOFLOW_API_KEY" \
--zone_configuration_path data/multi-zone-config.json \
--source_video_path data/market-square.mp4 \
--confidence_threshold 0.3 \
--iou_threshold 0.5
```
```bash
python inference_example.py \
--roboflow_api_key "ROBOFLOW_API_KEY" \
--zone_configuration_path data/multi-zone-config.json \
--source_video_path data/market-square.mp4 \
--confidence_threshold 0.3 \
--iou_threshold 0.5
```
## © license
This demo integrates two main components, each with its own licensing:
- ultralytics: The object detection model used in this demo, YOLOv8, is distributed under the [AGPL-3.0 license](https://github.com/ultralytics/ultralytics/blob/main/LICENSE). You can find more details about this license here.
- ultralytics: The object detection model used in this demo, YOLOv8, is distributed
under the [AGPL-3.0 license](https://github.com/ultralytics/ultralytics/blob/main/LICENSE).
You can find more details about this license here.
- supervision: The analytics code that powers the zone-based analysis in this demo is based on the Supervision library, which is licensed under the [MIT license](https://github.com/roboflow/supervision/blob/develop/LICENSE.md). This makes the Supervision part of the code fully open source and freely usable in your projects.
- supervision: The analytics code that powers the zone-based analysis in this demo is
based on the Supervision library, which is licensed under the
[MIT license](https://github.com/roboflow/supervision/blob/develop/LICENSE.md). This
makes the Supervision part of the code fully open source and freely usable in your
projects.

View File

@ -1,6 +1,7 @@
import json
import os
import cv2
import numpy as np
from inference.core.models.roboflow import RoboflowInferenceModel
from inference.models.utils import get_roboflow_model
@ -116,7 +117,7 @@ def annotate(
"""
annotated_frame = frame.copy()
for zone, zone_annotator, box_annotator in zip(
zones, zone_annotators, box_annotators, strict=True
zones, zone_annotators, box_annotators
):
detections_in_zone = detections[zone.trigger(detections=detections)]
annotated_frame = zone_annotator.annotate(scene=annotated_frame)
@ -134,7 +135,7 @@ def main(
target_video_path: str | None = None,
confidence_threshold: float = 0.3,
iou_threshold: float = 0.7,
) -> None:
):
"""
Counting people in zones with Inference and Supervision.
@ -178,7 +179,6 @@ def main(
)
sink.write_frame(annotated_frame)
else:
window = sv.ImageWindow("Processed Video")
for frame in tqdm(frames_generator, total=video_info.total_frames):
detections = detect(frame, model, confidence_threshold, iou_threshold)
annotated_frame = annotate(
@ -188,12 +188,11 @@ def main(
box_annotators=box_annotators,
detections=detections,
)
window.show(annotated_frame)
key = window.wait_key(1)
if not window.is_open or key == "q":
cv2.imshow("Processed Video", annotated_frame)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
window.close()
cv2.destroyAllWindows()
if __name__ == "__main__":

View File

@ -1,5 +1,6 @@
import json
import cv2
import numpy as np
from tqdm import tqdm
from ultralytics import YOLO
@ -115,7 +116,7 @@ def annotate(
"""
annotated_frame = frame.copy()
for zone, zone_annotator, box_annotator in zip(
zones, zone_annotators, box_annotators, strict=True
zones, zone_annotators, box_annotators
):
detections_in_zone = detections[zone.trigger(detections=detections)]
annotated_frame = zone_annotator.annotate(scene=annotated_frame)
@ -132,7 +133,7 @@ def main(
target_video_path: str | None = None,
confidence_threshold: float = 0.3,
iou_threshold: float = 0.7,
) -> None:
):
"""
Counting people in zones with YOLO and Supervision.
@ -166,7 +167,6 @@ def main(
)
sink.write_frame(annotated_frame)
else:
window = sv.ImageWindow("Processed Video")
for frame in tqdm(frames_generator, total=video_info.total_frames):
detections = detect(frame, model, confidence_threshold, iou_threshold)
annotated_frame = annotate(
@ -176,12 +176,11 @@ def main(
box_annotators=box_annotators,
detections=detections,
)
window.show(annotated_frame)
key = window.wait_key(1)
if not window.is_open or key == "q":
cv2.imshow("Processed Video", annotated_frame)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
window.close()
cv2.destroyAllWindows()
if __name__ == "__main__":

View File

@ -2,42 +2,51 @@
## 👋 hello
This script performs heatmap and tracking analysis using YOLOv8, an object-detection method and ByteTrack, a simple yet effective online multi-object tracking method. It uses the supervision package for multiple tasks such as drawing heatmap annotations, tracking objects, etc.
This script performs heatmap and tracking analysis using YOLOv8, an object-detection method and
ByteTrack, a simple yet effective online multi-object tracking method. It uses the
supervision package for multiple tasks such as drawing heatmap annotations, tracking objects, etc.
## 💻 install
- clone repository and navigate to example directory
```bash
git clone --depth 1 -b develop https://github.com/roboflow/supervision.git
cd supervision/examples/heatmap_and_track
```
```bash
git clone --depth 1 -b develop https://github.com/roboflow/supervision.git
cd supervision/examples/heatmap_and_track
```
- setup python environment and activate it [optional]
```bash
uv venv
source .venv/bin/activate
```
```bash
uv venv
source .venv/bin/activate
```
- install required dependencies
```bash
uv pip install -r requirements.txt
```
```bash
uv pip install -r requirements.txt
```
## 🛠️ script arguments
- `--source_weights_path`: Required. Specifies the path to the weights file for the YOLO model. This file contains the trained model data necessary for object detection.
- `--source_video_path` (optional): The path to the source video file that will be analyzed. This is the input video on which crowd analysis will be performed. If not specified default is `people-walking.mp4` from supervision assets
- `--source_weights_path`: Required. Specifies the path to the weights file for the
YOLO model. This file contains the trained model data necessary for object detection.
- `--source_video_path` (optional): The path to the source video file that will be
analyzed. This is the input video on which crowd analysis will be performed.
If not specified default is `people-walking.mp4` from supervision assets
- `--target_video_path` (optional): The path to save the output.mp4 video with annotations.
- `--confidence_threshold` (optional): Sets the confidence threshold for the YOLO model to filter detections. Default is `0.3`. This determines how confident the model should be to recognize an object in the video.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold for the model. Default is 0.7. This value is used to manage object detection accuracy, particularly in distinguishing between different objects.
- `--confidence_threshold` (optional): Sets the confidence threshold for the YOLO model
to filter detections. Default is `0.3`. This determines how confident the model should
be to recognize an object in the video.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold
for the model. Default is 0.7. This value is used to manage object detection accuracy,
particularly in distinguishing between different objects.
- `--heatmap_alpha` (optional): Opacity of the overlay mask, between 0 and 1.
- `--radius` (optional): Radius of the heat circle.
- `--track_activation_threshold` (optional): Detection confidence threshold for track activation.
- `--track_threshold` (optional): Detection confidence threshold for track activation.
- `--track_seconds` (optional): Number of seconds to buffer when a track is lost.
- `--minimum_matching_threshold` (optional): Threshold for matching tracks with detections.
- `--match_threshold` (optional): Threshold for matching tracks with detections.
## ⚙️ run
@ -54,6 +63,12 @@ python script.py \
This demo integrates two main components, each with its own licensing:
- ultralytics: The object detection model used in this demo, YOLOv8, is distributed under the [AGPL-3.0 license](https://github.com/ultralytics/ultralytics/blob/main/LICENSE). You can find more details about this license here.
- ultralytics: The object detection model used in this demo, YOLOv8, is distributed
under the [AGPL-3.0 license](https://github.com/ultralytics/ultralytics/blob/main/LICENSE).
You can find more details about this license here.
- supervision: The analytics code that powers the zone-based analysis in this demo is based on the Supervision library, which is licensed under the [MIT license](https://github.com/roboflow/supervision/blob/develop/LICENSE.md). This makes the Supervision part of the code fully open source and freely usable in your projects.
- supervision: The analytics code that powers the zone-based analysis in this demo is
based on the Supervision library, which is licensed under the
[MIT license](https://github.com/roboflow/supervision/blob/develop/LICENSE.md). This
makes the Supervision part of the code fully open source and freely usable in your
projects.

View File

@ -1,121 +1,123 @@
import cv2
from ultralytics import YOLO
import supervision as sv
from supervision.assets import VideoAssets, download_assets
def download_video() -> str:
download_assets(VideoAssets.PEOPLE_WALKING)
return VideoAssets.PEOPLE_WALKING.value
def main(
source_weights_path: str,
source_video_path: str | None = None,
target_video_path: str = "output.mp4",
confidence_threshold: float = 0.35,
iou_threshold: float = 0.5,
heatmap_alpha: float = 0.5,
radius: int = 25,
track_activation_threshold: float = 0.35,
track_seconds: int = 5,
minimum_matching_threshold: float = 0.99,
) -> None:
"""
Heatmap and Tracking with Supervision.
Args:
source_weights_path: Path to the source weights file
source_video_path: Path to the source video file
target_video_path: Path to the target video file
confidence_threshold: Confidence threshold for the model
iou_threshold: IOU threshold for the model
heatmap_alpha: Opacity of the overlay mask, between 0 and 1
radius: Radius of the heat circle
track_activation_threshold: Detection confidence threshold for track activation
track_seconds: Number of seconds to buffer when a track is lost
minimum_matching_threshold: Threshold for matching tracks with detections
"""
### instantiate model
model = YOLO(source_weights_path)
source_video_path = source_video_path or download_video()
### heatmap config
heat_map_annotator = sv.HeatMapAnnotator(
position=sv.Position.BOTTOM_CENTER,
opacity=heatmap_alpha,
radius=radius,
kernel_size=25,
top_hue=0,
low_hue=125,
)
### annotation config
label_annotator = sv.LabelAnnotator(text_position=sv.Position.CENTER)
### get the video fps
cap = cv2.VideoCapture(source_video_path)
fps = int(cap.get(cv2.CAP_PROP_FPS))
cap.release()
### tracker config
byte_tracker = sv.ByteTrack(
track_activation_threshold=track_activation_threshold,
lost_track_buffer=track_seconds * fps,
minimum_matching_threshold=minimum_matching_threshold,
frame_rate=fps,
)
### video config
video_info = sv.VideoInfo.from_video_path(video_path=source_video_path)
frames_generator = sv.get_video_frames_generator(
source_path=source_video_path, stride=1
)
### Detect, track, annotate, save
with sv.VideoSink(target_path=target_video_path, video_info=video_info) as sink:
for frame in frames_generator:
result = model(
source=frame,
classes=[0], # only person class
conf=confidence_threshold,
iou=iou_threshold,
# show_conf = True,
# save_txt = True,
# save_conf = True,
# save = True,
device=None, # use None = CPU, 0 = single GPU, or [0,1] = dual GPU
)[0]
detections = sv.Detections.from_ultralytics(result) # get detections
detections = byte_tracker.update_with_detections(
detections
) # update tracker
### draw heatmap
annotated_frame = heat_map_annotator.annotate(
scene=frame.copy(), detections=detections
)
### draw other attributes from `detections` object
labels = [
f"#{tracker_id}"
for class_id, tracker_id in zip(
detections.class_id, detections.tracker_id
)
]
label_annotator.annotate(
scene=annotated_frame, detections=detections, labels=labels
)
sink.write_frame(frame=annotated_frame)
if __name__ == "__main__":
from jsonargparse import auto_cli, set_parsing_settings
set_parsing_settings(parse_optionals_as_positionals=True)
auto_cli(main, as_positional=False)
from typing import Optional
import cv2
from ultralytics import YOLO
import supervision as sv
from supervision.assets import VideoAssets, download_assets
def download_video() -> str:
download_assets(VideoAssets.PEOPLE_WALKING)
return VideoAssets.PEOPLE_WALKING.value
def main(
source_weights_path: str,
source_video_path: Optional[str] = None,
target_video_path: str = "output.mp4",
confidence_threshold: float = 0.35,
iou_threshold: float = 0.5,
heatmap_alpha: float = 0.5,
radius: int = 25,
track_activation_threshold: float = 0.35,
track_seconds: int = 5,
minimum_matching_threshold: float = 0.99,
) -> None:
"""
Heatmap and Tracking with Supervision.
Args:
source_weights_path: Path to the source weights file
source_video_path: Path to the source video file
target_video_path: Path to the target video file
confidence_threshold: Confidence threshold for the model
iou_threshold: IOU threshold for the model
heatmap_alpha: Opacity of the overlay mask, between 0 and 1
radius: Radius of the heat circle
track_activation_threshold: Detection confidence threshold for track activation
track_seconds: Number of seconds to buffer when a track is lost
minimum_matching_threshold: Threshold for matching tracks with detections
"""
### instantiate model
model = YOLO(source_weights_path)
source_video_path = source_video_path or download_video()
### heatmap config
heat_map_annotator = sv.HeatMapAnnotator(
position=sv.Position.BOTTOM_CENTER,
opacity=heatmap_alpha,
radius=radius,
kernel_size=25,
top_hue=0,
low_hue=125,
)
### annotation config
label_annotator = sv.LabelAnnotator(text_position=sv.Position.CENTER)
### get the video fps
cap = cv2.VideoCapture(source_video_path)
fps = int(cap.get(cv2.CAP_PROP_FPS))
cap.release()
### tracker config
byte_tracker = sv.ByteTrack(
track_activation_threshold=track_activation_threshold,
lost_track_buffer=track_seconds * fps,
minimum_matching_threshold=minimum_matching_threshold,
frame_rate=fps,
)
### video config
video_info = sv.VideoInfo.from_video_path(video_path=source_video_path)
frames_generator = sv.get_video_frames_generator(
source_path=source_video_path, stride=1
)
### Detect, track, annotate, save
with sv.VideoSink(target_path=target_video_path, video_info=video_info) as sink:
for frame in frames_generator:
result = model(
source=frame,
classes=[0], # only person class
conf=confidence_threshold,
iou=iou_threshold,
# show_conf = True,
# save_txt = True,
# save_conf = True,
# save = True,
device=None, # use None = CPU, 0 = single GPU, or [0,1] = dual GPU
)[0]
detections = sv.Detections.from_ultralytics(result) # get detections
detections = byte_tracker.update_with_detections(
detections
) # update tracker
### draw heatmap
annotated_frame = heat_map_annotator.annotate(
scene=frame.copy(), detections=detections
)
### draw other attributes from `detections` object
labels = [
f"#{tracker_id}"
for class_id, tracker_id in zip(
detections.class_id, detections.tracker_id
)
]
label_annotator.annotate(
scene=annotated_frame, detections=detections, labels=labels
)
sink.write_frame(frame=annotated_frame)
if __name__ == "__main__":
from jsonargparse import auto_cli, set_parsing_settings
set_parsing_settings(parse_optionals_as_positionals=True)
auto_cli(main, as_positional=False)

View File

@ -1,96 +1,122 @@
# speed estimation
[![Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/roboflow-ai/notebooks/blob/main/notebooks/how-to-estimate-vehicle-speed-with-computer-vision.ipynb) [![YouTube](https://badges.aleen42.com/src/youtube.svg)](https://youtu.be/uWP6UjDeZvY)
[![Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/roboflow-ai/notebooks/blob/main/notebooks/how-to-estimate-vehicle-speed-with-computer-vision.ipynb)
[![YouTube](https://badges.aleen42.com/src/youtube.svg)](https://youtu.be/uWP6UjDeZvY)
## 👋 hello
This example performs speed estimation analysis using various object-detection models and ByteTrack - a simple yet effective online multi-object tracking method. It uses the supervision package for multiple tasks such as tracking, annotations, etc.
This example performs speed estimation analysis using various object-detection models
and ByteTrack - a simple yet effective online multi-object tracking method. It uses the
supervision package for multiple tasks such as tracking, annotations, etc.
https://github.com/roboflow/supervision/assets/26109316/d50118c1-2ae4-458d-915a-5d860fd36f71
> [!IMPORTANT] Adjust the [`SOURCE`](https://github.com/roboflow/supervision/blob/e32b05a636dab2ea1f39299e529c4b22b8baa8da/examples/speed_estimation/ultralytics_example.py#L10) and [`TARGET`](https://github.com/roboflow/supervision/blob/e32b05a636dab2ea1f39299e529c4b22b8baa8da/examples/speed_estimation/ultralytics_example.py#L15) configuration if you plan to run a speed estimation script on your video file. Those must be adjusted separately for each camera view. You can learn more from our YouTube [tutorial](https://youtu.be/uWP6UjDeZvY).
> [!IMPORTANT]
> Adjust the [`SOURCE`](https://github.com/roboflow/supervision/blob/e32b05a636dab2ea1f39299e529c4b22b8baa8da/examples/speed_estimation/ultralytics_example.py#L10)
> and [`TARGET`](https://github.com/roboflow/supervision/blob/e32b05a636dab2ea1f39299e529c4b22b8baa8da/examples/speed_estimation/ultralytics_example.py#L15)
> configuration if you plan to run a speed estimation script on your video file. Those must be adjusted separately for each camera view. You can learn more
> from our YouTube [tutorial](https://youtu.be/uWP6UjDeZvY).
## 💻 install
- clone repository and navigate to example directory
```bash
git clone --depth 1 -b develop https://github.com/roboflow/supervision.git
cd supervision/examples/speed_estimation
```
```bash
git clone --depth 1 -b develop https://github.com/roboflow/supervision.git
cd supervision/examples/speed_estimation
```
- setup python environment and activate it [optional]
```bash
uv venv
source .venv/bin/activate
```
```bash
uv venv
source .venv/bin/activate
```
- install required dependencies
```bash
uv pip install -r requirements.txt
```
```bash
uv pip install -r requirements.txt
```
- download `vehicles.mp4` file
```bash
python video_downloader.py
```
```bash
python video_downloader.py
```
## 🛠️ script arguments
- `--roboflow_api_key` (optional): The API key for Roboflow services. If not provided directly, the script tries to fetch it from the `ROBOFLOW_API_KEY` environment variable. Follow [this guide](https://docs.roboflow.com/api-reference/authentication#retrieve-an-api-key) to acquire your `API KEY`.
- `--roboflow_api_key` (optional): The API key for Roboflow services. If not provided
directly, the script tries to fetch it from the `ROBOFLOW_API_KEY` environment
variable. Follow [this guide](https://docs.roboflow.com/api-reference/authentication#retrieve-an-api-key)
to acquire your `API KEY`.
- `--model_id` (optional): Designates the Roboflow model ID to be used. The default value is `"yolov8x-1280"`.
- `--model_id` (optional): Designates the Roboflow model ID to be used. The default
value is `"yolov8x-1280"`.
- `--source_weights_path`: Required. Specifies the path to the YOLO model's weights file, which is essential for the object detection process. This file contains the data that the model uses to identify objects in the video.
- `--source_weights_path`: Required. Specifies the path to the YOLO model's weights
file, which is essential for the object detection process. This file contains the
data that the model uses to identify objects in the video.
- `--source_video_path`: Required. The path to the source video file that will be analyzed. This is the input video on which traffic flow analysis will be performed.
- `--source_video_path`: Required. The path to the source video file that will be
analyzed. This is the input video on which traffic flow analysis will be performed.
- `--target_video_path`: The path to save the output video with annotations. If not specified, the processed video will be displayed in real-time without being saved.
- `--target_video_path`: The path to save the output video with
annotations. If not specified, the processed video will be displayed in real-time
without being saved.
- `--confidence_threshold` (optional): Sets the confidence threshold for the YOLO model to filter detections. Default is `0.3`. This determines how confident the model should be to recognize an object in the video.
- `--confidence_threshold` (optional): Sets the confidence threshold for the YOLO
model to filter detections. Default is `0.3`. This determines how confident the
model should be to recognize an object in the video.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold for the model. Default is 0.7. This value is used to manage object detection accuracy, particularly in distinguishing between different objects.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold
for the model. Default is 0.7. This value is used to manage object detection
accuracy, particularly in distinguishing between different objects.
## ⚙️ run
- yolo-nas
```bash
python yolo_nas_example.py \
--source_video_path data/vehicles.mp4 \
--target_video_path data/vehicles-result.mp4 \
--confidence_threshold 0.3 \
--iou_threshold 0.5
```
```bash
python yolo_nas_example.py \
--source_video_path data/vehicles.mp4 \
--target_video_path data/vehicles-result.mp4 \
--confidence_threshold 0.3 \
--iou_threshold 0.5
```
- inference
```bash
python inference_example.py \
--roboflow_api_key "ROBOFLOW_API_KEY" \
--source_video_path data/vehicles.mp4 \
--target_video_path data/vehicles-result.mp4 \
--confidence_threshold 0.3 \
--iou_threshold 0.5
```
```bash
python inference_example.py \
--roboflow_api_key "ROBOFLOW_API_KEY" \
--source_video_path data/vehicles.mp4 \
--target_video_path data/vehicles-result.mp4 \
--confidence_threshold 0.3 \
--iou_threshold 0.5
```
- ultralytics
```bash
python ultralytics_example.py \
--source_video_path data/vehicles.mp4 \
--target_video_path data/vehicles-result.mp4 \
--confidence_threshold 0.3 \
--iou_threshold 0.5
```
```bash
python ultralytics_example.py \
--source_video_path data/vehicles.mp4 \
--target_video_path data/vehicles-result.mp4 \
--confidence_threshold 0.3 \
--iou_threshold 0.5
```
## © license
This demo integrates two main components, each with its own licensing:
- ultralytics: The object detection model used in this demo, YOLOv8, is distributed under the [AGPL-3.0 license](https://github.com/ultralytics/ultralytics/blob/main/LICENSE). You can find more details about this license here.
- ultralytics: The object detection model used in this demo, YOLOv8, is distributed
under the [AGPL-3.0 license](https://github.com/ultralytics/ultralytics/blob/main/LICENSE).
You can find more details about this license here.
- supervision: The analytics code that powers the zone-based analysis in this demo is based on the Supervision library, which is licensed under the [MIT license](https://github.com/roboflow/supervision/blob/develop/LICENSE.md). This makes the Supervision part of the code fully open source and freely usable in your projects.
- supervision: The analytics code that powers the zone-based analysis in this demo is
based on the Supervision library, which is licensed under the
[MIT license](https://github.com/roboflow/supervision/blob/develop/LICENSE.md). This
makes the Supervision part of the code fully open source and freely usable in your
projects.

View File

@ -44,7 +44,7 @@ def main(
roboflow_api_key: str | None = None,
confidence_threshold: float = 0.3,
iou_threshold: float = 0.7,
) -> None:
):
"""
Vehicle Speed Estimation using Inference and Supervision.
@ -96,7 +96,6 @@ def main(
coordinates = defaultdict(lambda: deque(maxlen=int(video_info.fps)))
with sv.VideoSink(target_video_path, video_info) as sink:
window = sv.ImageWindow("frame")
for frame in frame_generator:
results = model.infer(
frame, confidence=confidence_threshold, iou=iou_threshold
@ -110,7 +109,7 @@ def main(
)
points = view_transformer.transform_points(points=points).astype(int)
for tracker_id, [_, y] in zip(detections.tracker_id, points, strict=True):
for tracker_id, [_, y] in zip(detections.tracker_id, points):
coordinates[tracker_id].append(y)
labels = []
@ -137,11 +136,10 @@ def main(
)
sink.write_frame(annotated_frame)
window.show(annotated_frame)
key = window.wait_key(1)
if not window.is_open or key == "q":
cv2.imshow("frame", annotated_frame)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
window.close()
cv2.destroyAllWindows()
if __name__ == "__main__":

View File

@ -41,7 +41,7 @@ def main(
target_video_path: str,
confidence_threshold: float = 0.3,
iou_threshold: float = 0.7,
) -> None:
):
"""
Vehicle Speed Estimation using Ultralytics and Supervision.
@ -82,7 +82,6 @@ def main(
coordinates = defaultdict(lambda: deque(maxlen=int(video_info.fps)))
with sv.VideoSink(target_video_path, video_info) as sink:
window = sv.ImageWindow("frame")
for frame in frame_generator:
result = model(frame, conf=confidence_threshold, iou=iou_threshold)[0]
detections = sv.Detections.from_ultralytics(result)
@ -94,7 +93,7 @@ def main(
)
points = view_transformer.transform_points(points=points).astype(int)
for tracker_id, [_, y] in zip(detections.tracker_id, points, strict=True):
for tracker_id, [_, y] in zip(detections.tracker_id, points):
coordinates[tracker_id].append(y)
labels = []
@ -121,11 +120,10 @@ def main(
)
sink.write_frame(annotated_frame)
window.show(annotated_frame)
key = window.wait_key(1)
if not window.is_open or key == "q":
cv2.imshow("frame", annotated_frame)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
window.close()
cv2.destroyAllWindows()
if __name__ == "__main__":

View File

@ -42,7 +42,7 @@ def main(
target_video_path: str,
confidence_threshold: float = 0.3,
iou_threshold: float = 0.7,
) -> None:
):
"""
Vehicle Speed Estimation using YOLO-NAS and Supervision.
@ -83,7 +83,6 @@ def main(
coordinates = defaultdict(lambda: deque(maxlen=int(video_info.fps)))
with sv.VideoSink(target_video_path, video_info) as sink:
window = sv.ImageWindow("frame")
for frame in frame_generator:
result = model.predict(frame, conf=confidence_threshold, iou=iou_threshold)[
0
@ -124,11 +123,10 @@ def main(
)
sink.write_frame(annotated_frame)
window.show(annotated_frame)
key = window.wait_key(1)
if not window.is_open or key == "q":
cv2.imshow("frame", annotated_frame)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
window.close()
cv2.destroyAllWindows()
if __name__ == "__main__":

View File

@ -4,7 +4,10 @@
## 👋 hello
Practical demonstration on leveraging computer vision for analyzing wait times and monitoring the duration that objects or individuals spend in predefined areas of video frames. This example project, perfect for retail analytics or traffic management applications.
Practical demonstration on leveraging computer vision for analyzing wait times and
monitoring the duration that objects or individuals spend in predefined areas of video
frames. This example project, perfect for retail analytics or traffic management
applications.
https://github.com/roboflow/supervision/assets/26109316/d051cc8a-dd15-41d4-aa36-d38b86334c39
@ -12,25 +15,23 @@ https://github.com/roboflow/supervision/assets/26109316/d051cc8a-dd15-41d4-aa36-
- clone repository and navigate to example directory
```bash
git clone --depth 1 -b develop https://github.com/roboflow/supervision.git
cd supervision/examples/time_in_zone
```
```bash
git clone --depth 1 -b develop https://github.com/roboflow/supervision.git
cd supervision/examples/time_in_zone
```
- setup python environment and activate it [optional]
```bash
uv venv
source .venv/bin/activate
```
```bash
uv venv
source .venv/bin/activate
```
- install required dependencies
```bash
uv pip install -r requirements.txt
```
The three RTSP `*_stream_example.py` scripts display frames from an `InferencePipeline` callback running on a worker thread, so they use OpenCV HighGUI instead of `sv.ImageWindow`. Install `opencv-python` and keep only one OpenCV wheel installed to run those scripts. The file and naive-stream examples use `sv.ImageWindow`, which works regardless of which OpenCV wheel (or none) is installed.
```bash
uv pip install -r requirements.txt
```
## 🛠 scripts
@ -58,7 +59,9 @@ python scripts/download_from_youtube.py \
### `stream_from_file`
This script allows you to stream video files from a directory. It's an awesome way to mock a live video stream for local testing. Video will be streamed in a loop under `rtsp://localhost:8554/live0.stream` URL. This script requires docker to be installed.
This script allows you to stream video files from a directory. It's an awesome way to
mock a live video stream for local testing. Video will be streamed in a loop under
`rtsp://localhost:8554/live0.stream` URL. This script requires docker to be installed.
- `--video_directory`: Directory containing video files to stream.
- `--number_of_streams`: Number of video files to stream.
@ -77,7 +80,10 @@ python scripts/stream_from_file.py \
### `draw_zones`
If you want to test zone time in zone analysis on your own video, you can use this script to design custom zones and save results as a JSON file. The script will open a window where you can draw polygons on the source image or video file. The polygons will be saved as a JSON file.
If you want to test zone time in zone analysis on your own video, you can use this
script to design custom zones and save results as a JSON file. The script will open a
window where you can draw polygons on the source image or video file. The polygons will
be saved as a JSON file.
- `--source_path`: Path to the source image or video file for drawing polygons.
- `--zone_configuration_path`: Path where the polygon annotations will be saved as a JSON file.
@ -318,6 +324,12 @@ python ultralytics_stream_example.py \
This demo integrates two main components, each with its own licensing:
- ultralytics: The object detection model used in this demo, YOLOv8, is distributed under the [AGPL-3.0 license](https://github.com/ultralytics/ultralytics/blob/main/LICENSE). You can find more details about this license here.
- ultralytics: The object detection model used in this demo, YOLOv8, is distributed
under the [AGPL-3.0 license](https://github.com/ultralytics/ultralytics/blob/main/LICENSE).
You can find more details about this license here.
- supervision: The analytics code that powers the zone-based analysis in this demo is based on the Supervision library, which is licensed under the [MIT license](https://github.com/roboflow/supervision/blob/develop/LICENSE.md). This makes the Supervision part of the code fully open source and freely usable in your projects.
- supervision: The analytics code that powers the zone-based analysis in this demo is
based on the Supervision library, which is licensed under the
[MIT license](https://github.com/roboflow/supervision/blob/develop/LICENSE.md). This
makes the Supervision part of the code fully open source and freely usable in your
projects.

View File

@ -1,3 +1,4 @@
import cv2
import numpy as np
from inference import get_model
from utils.general import find_in_list, load_zones_config
@ -48,7 +49,6 @@ def main(
]
timers = [FPSBasedTimer(video_info.fps) for _ in zones]
window = sv.ImageWindow("Processed Video")
for frame in frames_generator:
results = model.infer(
frame, confidence=confidence_threshold, iou_threshold=iou_threshold
@ -84,11 +84,10 @@ def main(
custom_color_lookup=custom_color_lookup,
)
window.show(annotated_frame)
key = window.wait_key(1)
if not window.is_open or key == "q":
cv2.imshow("Processed Video", annotated_frame)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
window.close()
cv2.destroyAllWindows()
if __name__ == "__main__":

View File

@ -1,3 +1,4 @@
import cv2
import numpy as np
from inference import get_model
from utils.general import find_in_list, get_stream_frames_generator, load_zones_config
@ -48,7 +49,6 @@ def main(
]
timers = [ClockBasedTimer() for _ in zones]
window = sv.ImageWindow("Processed Video")
for frame in frames_generator:
fps_monitor.tick()
fps = fps_monitor.fps
@ -94,11 +94,10 @@ def main(
custom_color_lookup=custom_color_lookup,
)
window.show(annotated_frame)
key = window.wait_key(1)
if not window.is_open or key == "q":
cv2.imshow("Processed Video", annotated_frame)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
window.close()
cv2.destroyAllWindows()
if __name__ == "__main__":

View File

@ -15,7 +15,7 @@ LABEL_ANNOTATOR = sv.LabelAnnotator(
class CustomSink:
def __init__(self, zone_configuration_path: str, classes: list[int]) -> None:
def __init__(self, zone_configuration_path: str, classes: list[int]):
self.classes = classes
self.tracker = sv.ByteTrack(minimum_matching_threshold=0.5)
self.fps_monitor = sv.FPSMonitor()

View File

@ -2,6 +2,7 @@ from __future__ import annotations
from enum import Enum
import cv2
import numpy as np
from rfdetr import RFDETRBase, RFDETRLarge, RFDETRMedium, RFDETRNano, RFDETRSmall
from utils.general import find_in_list, load_zones_config
@ -24,7 +25,7 @@ class ModelSize(Enum):
LARGE = "large"
@classmethod
def list(cls) -> list[str]:
def list(cls):
return list(map(lambda c: c.value, cls))
@classmethod
@ -43,9 +44,7 @@ class ModelSize(Enum):
)
def load_model(
checkpoint: ModelSize | str, device: str, resolution: int
) -> RFDETRBase | RFDETRLarge | RFDETRMedium | RFDETRNano | RFDETRSmall:
def load_model(checkpoint: ModelSize | str, device: str, resolution: int):
checkpoint = ModelSize.from_value(checkpoint)
if checkpoint == ModelSize.NANO:
@ -127,7 +126,6 @@ def main(
]
timers = [FPSBasedTimer(video_info.fps) for _ in zones]
window = sv.ImageWindow("Processed Video")
for frame in frames_generator:
detections = model.predict(frame, threshold=confidence_threshold)
detections = detections[find_in_list(detections.class_id, classes)]
@ -161,11 +159,10 @@ def main(
custom_color_lookup=custom_color_lookup,
)
window.show(annotated_frame)
key = window.wait_key(1)
if not window.is_open or key == "q":
cv2.imshow("Processed Video", annotated_frame)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
window.close()
cv2.destroyAllWindows()
if __name__ == "__main__":

View File

@ -2,6 +2,7 @@ from __future__ import annotations
from enum import Enum
import cv2
import numpy as np
from rfdetr import RFDETRBase, RFDETRLarge, RFDETRMedium, RFDETRNano, RFDETRSmall
from utils.general import find_in_list, get_stream_frames_generator, load_zones_config
@ -24,7 +25,7 @@ class ModelSize(Enum):
LARGE = "large"
@classmethod
def list(cls) -> list[str]:
def list(cls):
return list(map(lambda c: c.value, cls))
@classmethod
@ -43,9 +44,7 @@ class ModelSize(Enum):
)
def load_model(
checkpoint: ModelSize | str, device: str, resolution: int
) -> RFDETRBase | RFDETRLarge | RFDETRMedium | RFDETRNano | RFDETRSmall:
def load_model(checkpoint: ModelSize | str, device: str, resolution: int):
checkpoint = ModelSize.from_value(checkpoint)
if checkpoint == ModelSize.NANO:
@ -127,7 +126,6 @@ def main(
]
timers = [ClockBasedTimer() for _ in zones]
window = sv.ImageWindow("Processed Video")
for frame in frames_generator:
fps_monitor.tick()
fps = fps_monitor.fps
@ -171,12 +169,11 @@ def main(
custom_color_lookup=custom_color_lookup,
)
window.show(annotated_frame)
key = window.wait_key(1)
if not window.is_open or key == "q":
cv2.imshow("Processed Video", annotated_frame)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
window.close()
cv2.destroyAllWindows()
if __name__ == "__main__":

View File

@ -21,7 +21,7 @@ class ModelSize(Enum):
LARGE = "large"
@classmethod
def list(cls) -> list[str]:
def list(cls):
return [c.value for c in cls]
@classmethod
@ -41,9 +41,7 @@ class ModelSize(Enum):
)
def load_model(
checkpoint: ModelSize | str, device: str, resolution: int
) -> RFDETRBase | RFDETRLarge | RFDETRMedium | RFDETRNano | RFDETRSmall:
def load_model(checkpoint: ModelSize | str, device: str, resolution: int):
checkpoint = ModelSize.from_value(checkpoint)
if checkpoint == ModelSize.NANO:
return RFDETRNano(device=device, resolution=resolution)
@ -79,7 +77,7 @@ LABEL_ANNOTATOR = sv.LabelAnnotator(
class CustomSink:
def __init__(self, zone_configuration_path: str, classes: list[int]) -> None:
def __init__(self, zone_configuration_path: str, classes: list[int]):
self.classes = classes
self.tracker = sv.ByteTrack(minimum_matching_threshold=0.8)
self.fps_monitor = sv.FPSMonitor()

View File

@ -1,3 +1,5 @@
from __future__ import annotations
import os
import sys
from typing import Any

View File

@ -1,5 +1,8 @@
from __future__ import annotations
import json
import os
from typing import Any
import cv2
import numpy as np
@ -7,10 +10,11 @@ from jsonargparse import auto_cli
import supervision as sv
KEY_ENTER = {"Return", "KP_Enter"}
KEY_ESCAPE = "Escape"
KEY_QUIT = "q"
KEY_SAVE = "s"
KEY_ENTER = 13
KEY_NEWLINE = 10
KEY_ESCAPE = 27
KEY_QUIT = ord("q")
KEY_SAVE = ord("s")
THICKNESS = 2
COLORS = sv.ColorPalette.DEFAULT
@ -33,17 +37,15 @@ def resolve_source(source_path: str) -> np.ndarray | None:
return frame
def mouse_event(x: int, y: int, event_type: str) -> None:
def mouse_event(event: int, x: int, y: int, flags: int, param: Any) -> None:
global current_mouse_position
if event_type == "move":
if event == cv2.EVENT_MOUSEMOVE:
current_mouse_position = (x, y)
elif event_type == "down":
elif event == cv2.EVENT_LBUTTONDOWN:
POLYGONS[-1].append((x, y))
def redraw(
image: np.ndarray, original_image: np.ndarray, window: sv.ImageWindow
) -> None:
def redraw(image: np.ndarray, original_image: np.ndarray) -> None:
global POLYGONS, current_mouse_position
image[:] = original_image.copy()
for idx, polygon in enumerate(POLYGONS):
@ -78,12 +80,10 @@ def redraw(
color=color,
thickness=THICKNESS,
)
window.show(image)
cv2.imshow(WINDOW_NAME, image)
def close_and_finalize_polygon(
image: np.ndarray, original_image: np.ndarray, window: sv.ImageWindow
) -> None:
def close_and_finalize_polygon(image: np.ndarray, original_image: np.ndarray) -> None:
if len(POLYGONS[-1]) > 2:
cv2.line(
img=image,
@ -95,7 +95,7 @@ def close_and_finalize_polygon(
POLYGONS.append([])
image[:] = original_image.copy()
redraw_polygons(image)
window.show(image)
cv2.imshow(WINDOW_NAME, image)
def redraw_polygons(image: np.ndarray) -> None:
@ -119,9 +119,7 @@ def redraw_polygons(image: np.ndarray) -> None:
)
def save_polygons_to_json(
polygons: list[list[tuple[int, int]]], target_path: str | os.PathLike[str]
) -> None:
def save_polygons_to_json(polygons, target_path):
data_to_save = polygons if polygons[-1] else polygons[:-1]
with open(target_path, "w") as f:
json.dump(data_to_save, f)
@ -142,16 +140,13 @@ def main(source_path: str, zone_configuration_path: str) -> None:
return
image = original_image.copy()
window = sv.ImageWindow(WINDOW_NAME)
window.set_mouse_callback(mouse_event)
window.show(image)
cv2.imshow(WINDOW_NAME, image)
cv2.setMouseCallback(WINDOW_NAME, mouse_event, image)
while True:
key = window.wait_key(1)
if not window.is_open:
break
if key in KEY_ENTER:
close_and_finalize_polygon(image, original_image, window)
key = cv2.waitKey(1) & 0xFF
if key == KEY_ENTER or key == KEY_NEWLINE:
close_and_finalize_polygon(image, original_image)
elif key == KEY_ESCAPE:
POLYGONS[-1] = []
current_mouse_position = None
@ -159,11 +154,11 @@ def main(source_path: str, zone_configuration_path: str) -> None:
save_polygons_to_json(POLYGONS, zone_configuration_path)
print(f"Polygons saved to {zone_configuration_path}")
break
redraw(image, original_image, window)
redraw(image, original_image)
if key == KEY_QUIT:
break
window.close()
cv2.destroyAllWindows()
if __name__ == "__main__":

View File

@ -1,3 +1,4 @@
import cv2
import numpy as np
from ultralytics import YOLO
from utils.general import find_in_list, load_zones_config
@ -48,7 +49,6 @@ def main(
]
timers = [FPSBasedTimer(video_info.fps) for _ in zones]
window = sv.ImageWindow("Processed Video")
for frame in frames_generator:
results = model(
frame,
@ -88,11 +88,10 @@ def main(
custom_color_lookup=custom_color_lookup,
)
window.show(annotated_frame)
key = window.wait_key(1)
if not window.is_open or key == "q":
cv2.imshow("Processed Video", annotated_frame)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
window.close()
cv2.destroyAllWindows()
if __name__ == "__main__":

View File

@ -1,3 +1,4 @@
import cv2
import numpy as np
from ultralytics import YOLO
from utils.general import find_in_list, get_stream_frames_generator, load_zones_config
@ -48,7 +49,6 @@ def main(
]
timers = [ClockBasedTimer() for _ in zones]
window = sv.ImageWindow("Processed Video")
for frame in frames_generator:
fps_monitor.tick()
fps = fps_monitor.fps
@ -98,11 +98,10 @@ def main(
custom_color_lookup=custom_color_lookup,
)
window.show(annotated_frame)
key = window.wait_key(1)
if not window.is_open or key == "q":
cv2.imshow("Processed Video", annotated_frame)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
window.close()
cv2.destroyAllWindows()
if __name__ == "__main__":

View File

@ -1,3 +1,5 @@
from __future__ import annotations
import cv2
import numpy as np
from inference import InferencePipeline
@ -16,7 +18,7 @@ LABEL_ANNOTATOR = sv.LabelAnnotator(
class CustomSink:
def __init__(self, zone_configuration_path: str, classes: list[int]) -> None:
def __init__(self, zone_configuration_path: str, classes: list[int]):
self.classes = classes
self.tracker = sv.ByteTrack(minimum_matching_threshold=0.8)
self.fps_monitor = sv.FPSMonitor()

View File

@ -2,82 +2,107 @@
## 👋 hello
This script provides functionality for processing videos using YOLOv8 for object detection and Supervision for tracking and annotation.
This script provides functionality for processing videos using YOLOv8 for object
detection and Supervision for tracking and annotation.
## 💻 install
- clone repository and navigate to example directory
```bash
git clone --depth 1 -b develop https://github.com/roboflow/supervision.git
cd supervision/examples/tracking
```
```bash
git clone --depth 1 -b develop https://github.com/roboflow/supervision.git
cd supervision/examples/tracking
```
- setup python environment and activate it [optional]
```bash
uv venv
source .venv/bin/activate
```
```bash
uv venv
source .venv/bin/activate
```
- install required dependencies
```bash
uv pip install -r requirements.txt
```
```bash
uv pip install -r requirements.txt
```
## 🛠️ script arguments
- ultralytics
- `--source_weights_path`: Required. Specifies the path to the YOLO model's weights file, which is essential for the object detection process. This file contains the data that the model uses to identify objects in the video.
- `--source_weights_path`: Required. Specifies the path to the YOLO model's weights
file, which is essential for the object detection process. This file contains the data
that the model uses to identify objects in the video.
- `--source_video_path`: Required. The path to the source video file to be processed. This is the video on which object detection and annotation will be performed.
- `--source_video_path`: Required. The path to the source video file to be processed.
This is the video on which object detection and annotation will be performed.
- `--target_video_path`: Required. The path where the processed video, with annotations added, will be saved. This is your output video file.
- `--target_video_path`: Required. The path where the processed video, with annotations
added, will be saved. This is your output video file.
- `--confidence_threshold` (optional): Sets the confidence level at which the model identifies objects in the video. Default is `0.3`. A higher threshold makes the model more selective, while a lower threshold makes it more inclusive in identifying objects.
- `--confidence_threshold` (optional): Sets the confidence level at which the model
identifies objects in the video. Default is `0.3`. A higher threshold makes the model
more selective, while a lower threshold makes it more inclusive in identifying objects.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold for the model, defaulting to `0.7`. This parameter helps in differentiating between distinct objects, especially in crowded scenes.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold
for the model, defaulting to `0.7`. This parameter helps in differentiating between
distinct objects, especially in crowded scenes.
- inference
- `--roboflow_api_key` (optional): The API key for Roboflow services. If not provided directly, the script tries to fetch it from the `ROBOFLOW_API_KEY` environment variable. Follow [this guide](https://docs.roboflow.com/api-reference/authentication#retrieve-an-api-key) to acquire your `API KEY`.
- `--roboflow_api_key` (optional): The API key for Roboflow services. If not provided
directly, the script tries to fetch it from the `ROBOFLOW_API_KEY` environment
variable. Follow [this guide](https://docs.roboflow.com/api-reference/authentication#retrieve-an-api-key)
to acquire your `API KEY`.
- `--model_id` (optional): Designates the Roboflow model ID to be used. The default value is `"yolov8x-1280"`.
- `--model_id` (optional): Designates the Roboflow model ID to be used. The default
value is `"yolov8x-1280"`.
- `--source_video_path`: Required. The path to the source video file to be processed. This is the video on which object detection and annotation will be performed.
- `--source_video_path`: Required. The path to the source video file to be processed.
This is the video on which object detection and annotation will be performed.
- `--target_video_path`: Required. The path where the processed video, with annotations added, will be saved. This is your output video file.
- `--target_video_path`: Required. The path where the processed video, with annotations
added, will be saved. This is your output video file.
- `--confidence_threshold` (optional): Sets the confidence level at which the model identifies objects in the video. Default is `0.3`. A higher threshold makes the model more selective, while a lower threshold makes it more inclusive in identifying objects.
- `--confidence_threshold` (optional): Sets the confidence level at which the model
identifies objects in the video. Default is `0.3`. A higher threshold makes the model
more selective, while a lower threshold makes it more inclusive in identifying objects.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold for the model, defaulting to `0.7`. This parameter helps in differentiating between distinct objects, especially in crowded scenes.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold
for the model, defaulting to `0.7`. This parameter helps in differentiating between
distinct objects, especially in crowded scenes.
## ⚙️ run
- inference
```bash
python inference_example.py \
--roboflow_api_key "ROBOFLOW_API_KEY" \
--source_video_path input.mp4 \
--target_video_path tracking_result.mp4
```
```bash
python inference_example.py \
--roboflow_api_key "ROBOFLOW_API_KEY" \
--source_video_path input.mp4 \
--target_video_path tracking_result.mp4
```
- ultralytics
```bash
python ultralytics_example.py \
--source_weights_path yolov8s.pt \
--source_video_path input.mp4 \
--target_video_path tracking_result.mp4
```
```bash
python ultralytics_example.py \
--source_weights_path yolov8s.pt \
--source_video_path input.mp4 \
--target_video_path tracking_result.mp4
```
## © license
This demo integrates two main components, each with its own licensing:
- ultralytics: The object detection model used in this demo, YOLOv8, is distributed under the [AGPL-3.0 license](https://github.com/ultralytics/ultralytics/blob/main/LICENSE). You can find more details about this license here.
- ultralytics: The object detection model used in this demo, YOLOv8, is distributed
under the [AGPL-3.0 license](https://github.com/ultralytics/ultralytics/blob/main/LICENSE).
You can find more details about this license here.
- supervision: The analytics code that powers the zone-based analysis in this demo is based on the Supervision library, which is licensed under the [MIT license](https://github.com/roboflow/supervision/blob/develop/LICENSE.md). This makes the Supervision part of the code fully open source and freely usable in your projects.
- supervision: The analytics code that powers the zone-based analysis in this demo is
based on the Supervision library, which is licensed under the
[MIT license](https://github.com/roboflow/supervision/blob/develop/LICENSE.md). This
makes the Supervision part of the code fully open source and freely usable in your
projects.

View File

@ -2,7 +2,9 @@
## 👋 hello
This script performs traffic flow analysis using YOLOv8, an object-detection method and ByteTrack, a simple yet effective online multi-object tracking method. It uses the supervision package for multiple tasks such as tracking, annotations, etc.
This script performs traffic flow analysis using YOLOv8, an object-detection method and
ByteTrack, a simple yet effective online multi-object tracking method. It uses the
supervision package for multiple tasks such as tracking, annotations, etc.
https://github.com/roboflow/supervision/assets/26109316/c9436828-9fbf-4c25-ae8c-60e9c81b3900
@ -10,86 +12,112 @@ https://github.com/roboflow/supervision/assets/26109316/c9436828-9fbf-4c25-ae8c-
- clone repository and navigate to example directory
```bash
git clone --depth 1 -b develop https://github.com/roboflow/supervision.git
cd supervision/examples/traffic_analysis
```
```bash
git clone --depth 1 -b develop https://github.com/roboflow/supervision.git
cd supervision/examples/traffic_analysis
```
- setup python environment and activate it [optional]
```bash
uv venv
source .venv/bin/activate
```
```bash
uv venv
source .venv/bin/activate
```
- install required dependencies
```bash
uv pip install -r requirements.txt
```
```bash
uv pip install -r requirements.txt
```
- download `traffic_analysis.pt` and `traffic_analysis.mov` files
```bash
./setup.sh
```
```bash
./setup.sh
```
## 🛠️ script arguments
- ultralytics
- `--source_weights_path`: Required. Specifies the path to the YOLO model's weights file, which is essential for the object detection process. This file contains the data that the model uses to identify objects in the video.
- `--source_weights_path`: Required. Specifies the path to the YOLO model's weights
file, which is essential for the object detection process. This file contains the
data that the model uses to identify objects in the video.
- `--source_video_path`: Required. The path to the source video file that will be analyzed. This is the input video on which traffic flow analysis will be performed.
- `--source_video_path`: Required. The path to the source video file that will be
analyzed. This is the input video on which traffic flow analysis will be performed.
- `--target_video_path` (optional): The path to save the output video with annotations. If not specified, the processed video will be displayed in real-time without being saved.
- `--target_video_path` (optional): The path to save the output video with
annotations. If not specified, the processed video will be displayed in real-time
without being saved.
- `--confidence_threshold` (optional): Sets the confidence threshold for the YOLO model to filter detections. Default is `0.3`. This determines how confident the model should be to recognize an object in the video.
- `--confidence_threshold` (optional): Sets the confidence threshold for the YOLO
model to filter detections. Default is `0.3`. This determines how confident the
model should be to recognize an object in the video.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold for the model. Default is 0.7. This value is used to manage object detection accuracy, particularly in distinguishing between different objects.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold
for the model. Default is 0.7. This value is used to manage object detection
accuracy, particularly in distinguishing between different objects.
- inference
- `--roboflow_api_key` (optional): The API key for Roboflow services. If not provided directly, the script tries to fetch it from the `ROBOFLOW_API_KEY` environment variable. Follow [this guide](https://docs.roboflow.com/api-reference/authentication#retrieve-an-api-key) to acquire your `API KEY`.
- `--roboflow_api_key` (optional): The API key for Roboflow services. If not provided
directly, the script tries to fetch it from the `ROBOFLOW_API_KEY` environment
variable. Follow [this guide](https://docs.roboflow.com/api-reference/authentication#retrieve-an-api-key)
to acquire your `API KEY`.
- `--model_id` (optional): Designates the Roboflow model ID to be used. The default value is `"vehicle-count-in-drone-video/6"`.
- `--model_id` (optional): Designates the Roboflow model ID to be used. The default
value is `"vehicle-count-in-drone-video/6"`.
- `--source_video_path`: Required. The path to the source video file that will be analyzed. This is the input video on which traffic flow analysis will be performed.
- `--source_video_path`: Required. The path to the source video file that will be
analyzed. This is the input video on which traffic flow analysis will be performed.
- `--target_video_path` (optional): The path to save the output video with annotations. If not specified, the processed video will be displayed in real-time without being saved.
- `--target_video_path` (optional): The path to save the output video with
annotations. If not specified, the processed video will be displayed in real-time
without being saved.
- `--confidence_threshold` (optional): Sets the confidence threshold for the YOLO model to filter detections. Default is `0.3`. This determines how confident the model should be to recognize an object in the video.
- `--confidence_threshold` (optional): Sets the confidence threshold for the YOLO
model to filter detections. Default is `0.3`. This determines how confident the
model should be to recognize an object in the video.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold for the model. Default is 0.7. This value is used to manage object detection accuracy, particularly in distinguishing between different objects.
- `--iou_threshold` (optional): Specifies the IOU (Intersection Over Union) threshold
for the model. Default is 0.7. This value is used to manage object detection
accuracy, particularly in distinguishing between different objects.
## ⚙️ run
- ultralytics
```bash
python ultralytics_example.py \
--source_weights_path data/traffic_analysis.pt \
--source_video_path data/traffic_analysis.mov \
--confidence_threshold 0.3 \
--iou_threshold 0.5 \
--target_video_path data/traffic_analysis_result.mov
```
```bash
python ultralytics_example.py \
--source_weights_path data/traffic_analysis.pt \
--source_video_path data/traffic_analysis.mov \
--confidence_threshold 0.3 \
--iou_threshold 0.5 \
--target_video_path data/traffic_analysis_result.mov
```
- inference
```bash
python inference_example.py \
--roboflow_api_key "ROBOFLOW_API_KEY" \
--source_video_path data/traffic_analysis.mov \
--confidence_threshold 0.3 \
--iou_threshold 0.5 \
--target_video_path data/traffic_analysis_result.mov
```
```bash
python inference_example.py \
--roboflow_api_key "ROBOFLOW_API_KEY" \
--source_video_path data/traffic_analysis.mov \
--confidence_threshold 0.3 \
--iou_threshold 0.5 \
--target_video_path data/traffic_analysis_result.mov
```
## © license
This demo integrates two main components, each with its own licensing:
- ultralytics: The object detection model used in this demo, YOLOv8, is distributed under the [AGPL-3.0 license](https://github.com/ultralytics/ultralytics/blob/main/LICENSE). You can find more details about this license here.
- ultralytics: The object detection model used in this demo, YOLOv8, is distributed
under the [AGPL-3.0 license](https://github.com/ultralytics/ultralytics/blob/main/LICENSE).
You can find more details about this license here.
- supervision: The analytics code that powers the zone-based analysis in this demo is based on the Supervision library, which is licensed under the [MIT license](https://github.com/roboflow/supervision/blob/develop/LICENSE.md). This makes the Supervision part of the code fully open source and freely usable in your projects.
- supervision: The analytics code that powers the zone-based analysis in this demo is
based on the Supervision library, which is licensed under the
[MIT license](https://github.com/roboflow/supervision/blob/develop/LICENSE.md). This
makes the Supervision part of the code fully open source and freely usable in your
projects.

View File

@ -1,6 +1,9 @@
from __future__ import annotations
import os
from collections.abc import Iterable
import cv2
import numpy as np
from inference.models.utils import get_roboflow_model
from tqdm import tqdm
@ -100,7 +103,7 @@ class VideoProcessor:
)
self.detections_manager = DetectionsManager()
def process_video(self) -> None:
def process_video(self):
frame_generator = sv.get_video_frames_generator(
source_path=self.source_video_path
)
@ -111,14 +114,12 @@ class VideoProcessor:
annotated_frame = self.process_frame(frame)
sink.write_frame(annotated_frame)
else:
window = sv.ImageWindow("Processed Video")
for frame in tqdm(frame_generator, total=self.video_info.total_frames):
annotated_frame = self.process_frame(frame)
window.show(annotated_frame)
key = window.wait_key(1)
if not window.is_open or key == "q":
cv2.imshow("Processed Video", annotated_frame)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
window.close()
cv2.destroyAllWindows()
def annotate_frame(
self, frame: np.ndarray, detections: sv.Detections

View File

@ -1,5 +1,8 @@
from __future__ import annotations
from collections.abc import Iterable
import cv2
import numpy as np
from tqdm import tqdm
from ultralytics import YOLO
@ -97,7 +100,7 @@ class VideoProcessor:
)
self.detections_manager = DetectionsManager()
def process_video(self) -> None:
def process_video(self):
frame_generator = sv.get_video_frames_generator(
source_path=self.source_video_path
)
@ -108,14 +111,12 @@ class VideoProcessor:
annotated_frame = self.process_frame(frame)
sink.write_frame(annotated_frame)
else:
window = sv.ImageWindow("Processed Video")
for frame in tqdm(frame_generator, total=self.video_info.total_frames):
annotated_frame = self.process_frame(frame)
window.show(annotated_frame)
key = window.wait_key(1)
if not window.is_open or key == "q":
cv2.imshow("Processed Video", annotated_frame)
if cv2.waitKey(1) & 0xFF == ord("q"):
break
window.close()
cv2.destroyAllWindows()
def annotate_frame(
self, frame: np.ndarray, detections: sv.Detections

View File

@ -20,7 +20,7 @@ extra:
link: https://discord.gg/GbfgXGJ8Bk
analytics:
provider: google
property: G-SEKT4K1EWR
property: G-P7ZG0Y19G5
version:
provider: mike
@ -42,8 +42,6 @@ nav:
- Process Datasets: how_to/process_datasets.md
- Benchmark a Model: how_to/benchmark_a_model.md
- Count in Zone: how_to/count_in_zone.md
- Use Compact Masks: how_to/use_compact_masks.md
- OpenCV Migration: how_to/opencv_migration.md
- Reference:
- Detection and Segmentation:
- Core: detection/core.md
@ -54,7 +52,7 @@ nav:
- Boxes: detection/utils/boxes.md
- Masks: detection/utils/masks.md
- Polygons: detection/utils/polygons.md
- VLM Utils: detection/utils/vlms.md
- VLMs: detection/utils/vlms.md
- Keypoint Detection:
- Core: keypoint/core.md
- Annotators: keypoint/annotators.md
@ -78,10 +76,8 @@ nav:
- Common Values: metrics/common_values.md
- Legacy Metrics: detection/metrics.md
- Utils:
- Conversion: utils/conversion.md
- Video: utils/video.md
- Image: utils/image.md
- Image Window: utils/image_window.md
- Iterables: utils/iterables.md
- Notebook: utils/notebook.md
- File: utils/file.md
@ -89,9 +85,6 @@ nav:
- Geometry: utils/geometry.md
- Assets: assets.md
- Cookbooks: cookbooks.md
- Contributing: contributing.md
- Code of Conduct: code_of_conduct.md
- License: license.md
- Changelog:
- Changelog: changelog.md
- Deprecated: deprecated.md
@ -139,10 +132,10 @@ plugins:
default_handler: python
handlers:
python:
paths: [supervision]
load_external_modules: true
options:
parameter_headings: true
paths: [supervision]
load_external_modules: true
allow_inspection: true
show_bases: true
group_by_category: true

9
notebooks/convert_to_ipynb.sh Executable file
View File

@ -0,0 +1,9 @@
#!/usr/bin/env bash
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
for py in "$SCRIPT_DIR"/*.py; do
echo "Converting: $(basename "$py")"
jupytext --to ipynb "$py"
done

View File

@ -0,0 +1,450 @@
# ---
# jupyter:
# jupytext:
# cell_metadata_filter: -all
# formats: ipynb,py:percent
# text_representation:
# extension: .py
# format_name: percent
# format_version: '1.3'
# jupytext_version: 1.19.1
# ---
# ruff: noqa: E402
# %% [markdown]
# # supervision 0.28.0: Memory-Efficient Instance Segmentation
#
# [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/roboflow/supervision/blob/develop/notebooks/release-demo_0-28.ipynb)
#
# **supervision** is a set of reusable tools for computer vision.
# Two headlining changes in 0.28.0:
#
# 1. **`sv.Detections.from_sam3`** -- first-class support for SAM3 (Segment
# Anything Model 3) inference responses. supervision now parses both the
# PCS (prompt-controlled segmentation) and PVS (point-video segmentation)
# output formats directly into a `sv.Detections` object.
#
# 2. **`sv.CompactMask`** -- instance masks stored as RLE-encoded bounding-box
# crops instead of full-resolution bitmaps. Any segmentation model --
# RF-DETR Seg, SAM3, YOLO-Seg -- can feed into CompactMask. Memory drops
# 10-100x without changing the API anywhere in supervision.
#
# **Story**: run RF-DETR Seg on a real image, visualise the masks, then convert
# to CompactMask and watch the memory footprint collapse.
#
# **Sections:**
# 1. [Install](#1-install)
# 2. [Download sample image](#2-download-sample-image)
# 3. [RF-DETR Seg -- instance segmentation](#3-rf-detr-seg)
# 4. [CompactMask -- memory-efficient storage](#4-compactmask)
# 5. [SAM3 -- text-prompted segmentation](#5-sam3)
# 6. [Other notable changes in 0.28.0](#6-other-notable-changes)
# 7. [Next steps](#7-next-steps)
# %% [markdown]
# ## 1. Install
# %%
# !pip install -q 'supervision==0.28.0' 'rfdetr' 'inference-sdk>=0.9' numpy matplotlib
# %% [markdown]
# ## 2. Download sample image
#
# `sv.ImageAssets` is new in 0.28.0 -- a counterpart to the existing
# `sv.VideoAssets`. `download_assets` caches locally and returns the path.
# %%
# %matplotlib inline
import cv2
import matplotlib.pyplot as plt
import numpy as np
import supervision as sv
from supervision.assets import ImageAssets, download_assets
image_path = download_assets(ImageAssets.PEOPLE_WALKING)
print(f"Image: {image_path}")
image_bgr = cv2.imread(image_path)
image_rgb = cv2.cvtColor(image_bgr, cv2.COLOR_BGR2RGB)
H, W = image_bgr.shape[:2]
print(f"Resolution: {W} x {H}")
plt.figure(figsize=(12, 7))
plt.imshow(image_rgb)
plt.axis("off")
plt.title("people-walking.jpg")
plt.tight_layout()
plt.show()
# %% [markdown]
# ## 3. RF-DETR Seg
#
# **RF-DETR** is a real-time transformer-based object detection model from Roboflow.
# The `RFDETRSegSmall` variant adds an instance segmentation head -- it produces
# one binary mask per detected instance alongside the bounding box.
#
# Key facts for this demo:
#
# - Pretrained on **COCO** (80 object categories) -- detects people, bags, cars, etc.
# - Weights download automatically on first `RFDETRSegSmall()` call (~100 MB).
# - `model.predict()` returns **`sv.Detections`** directly -- no converter needed.
# Masks are a `(N, H, W)` bool array attached as `detections.mask`.
# %%
from rfdetr.detr import RFDETRSegSmall
model = RFDETRSegSmall()
model.optimize_for_inference()
# predict accepts a file path, PIL Image, or RGB numpy array
detections = model.predict(image_path, threshold=0.3)
if not isinstance(detections, sv.Detections):
raise TypeError(f"Expected sv.Detections, got {type(detections).__name__}")
n_masks = 0 if detections.mask is None else len(detections.mask)
print(f"Detections: {len(detections)} (with masks: {n_masks})")
# %% [markdown]
# ### 3.1 COCO class names
#
# COCO has 90 numeric class IDs; map them to readable names for annotation.
# %%
# Subset of COCO class names (IDs 0-based after RF-DETR's remapping).
COCO_NAMES: dict[int, str] = {
0: "person",
1: "bicycle",
2: "car",
3: "motorcycle",
4: "airplane",
5: "bus",
6: "train",
7: "truck",
8: "boat",
24: "backpack",
25: "umbrella",
26: "handbag",
28: "suitcase",
56: "chair",
57: "couch",
58: "potted plant",
59: "bed",
60: "dining table",
62: "tv",
63: "laptop",
67: "cell phone",
72: "refrigerator",
74: "clock",
76: "scissors",
}
labels = []
assert detections.class_id is not None
for cid, conf in zip(
detections.class_id,
detections.confidence
if detections.confidence is not None
else [None] * len(detections),
):
name = COCO_NAMES.get(int(cid), f"cls_{cid}")
labels.append(f"{name} {conf:.2f}" if conf is not None else name)
# %% [markdown]
# ### 3.2 Visualise RF-DETR Seg output
# %%
PALETTE = sv.ColorPalette.DEFAULT
annotated = image_bgr.copy()
annotated = sv.MaskAnnotator(color=PALETTE, opacity=0.45).annotate(
annotated, detections
)
annotated = sv.BoxAnnotator(color=PALETTE, thickness=2).annotate(annotated, detections)
annotated = sv.LabelAnnotator(color=PALETTE, text_scale=0.5, text_thickness=1).annotate(
annotated, detections, labels=labels
)
plt.figure(figsize=(12, 7))
plt.imshow(cv2.cvtColor(annotated, cv2.COLOR_BGR2RGB))
plt.axis("off")
plt.title(f"RF-DETR Seg -- {len(detections)} instance(s)")
plt.tight_layout()
plt.show()
# %% [markdown]
# ## 4. CompactMask
#
# RF-DETR Seg returns one full-resolution binary mask per detected instance.
# On a 1280 x 720 image with 12 people that is:
#
# `12 x 720 x 1280 x 1 byte = 11 MB`
#
# Most of those pixels are background. The actual person silhouette fits in a
# tight bounding box. `sv.CompactMask` stores **only the bounding-box crop**,
# RLE-encoded:
#
# - A 200 x 100 person crop: `~2.5 KB` instead of `900 KB`
# - Drop-in replacement -- all annotators, filters, and `area` keep working
# %% [markdown]
# ### 4.1 Measure dense mask footprint
# %%
from typing import Any
dense_bytes: int = 0
dense_mask: "np.ndarray[Any, np.dtype[np.bool_]] | None" = None
assert detections.mask is not None and isinstance(detections.mask, np.ndarray)
dense_mask = detections.mask
dense_bytes = dense_mask.nbytes
n_inst = len(dense_mask)
print(f"Instances: {n_inst}")
print(f"Mask shape: {dense_mask.shape} (N x H x W, bool)")
print(f"Dense footprint: {dense_bytes / 1024:.1f} KB")
print(f" = {n_inst} masks x {H} x {W} x 1 byte")
# %% [markdown]
# ### 4.2 Convert to CompactMask
# %%
compact: "sv.CompactMask | None" = None
crop_bytes: int = 0
assert dense_mask is not None
compact = sv.CompactMask.from_dense(
masks=dense_mask,
xyxy=detections.xyxy,
image_shape=(H, W),
)
# Measure compact size via uncompressed crop booleans (upper bound; RLE < this).
crop_bytes = sum(compact.crop(i).nbytes for i in range(len(compact)))
print(f"Crop size (est.): {crop_bytes / 1024:.1f} KB (uncompressed crops)")
if crop_bytes > 0 and dense_bytes > 0:
ratio = dense_bytes / crop_bytes
print(f"Reduction factor: {ratio:.1f}x (before RLE compression)")
# Swap in CompactMask -- supervision uses it transparently from here on.
detections.mask = compact
print(f"\ndetections.mask type: {type(detections.mask).__name__}")
# %% [markdown]
# ### 4.3 Filtering by mask area
#
# `compact.area` returns the true pixel count of each instance mask.
# Filter out tiny detections (partial occlusions, image-edge artefacts).
# %%
large: sv.Detections = detections
large_labels: list[str] = labels
assert isinstance(detections.mask, sv.CompactMask)
areas = detections.mask.area
print(
f"Mask areas (px): min={areas.min():.0f} "
f"mean={areas.mean():.0f} max={areas.max():.0f}"
)
# Keep instances larger than 0.1% of the image.
min_area = 0.001 * H * W
keep_idx = np.where(areas > min_area)[0]
_filtered = detections[keep_idx]
if isinstance(_filtered, sv.Detections):
large = _filtered
large_labels = [labels[i] for i in keep_idx] if labels else []
print(f"\nInstances > {min_area:.0f} px: {len(large)}")
# %% [markdown]
# ### 4.4 Annotate with CompactMask
#
# Annotators call `.to_dense()` internally -- CompactMask is invisible to them.
# %%
assert isinstance(detections.mask, sv.CompactMask) and dense_bytes > 0
annotated_compact = image_bgr.copy()
annotated_compact = sv.MaskAnnotator(color=PALETTE, opacity=0.45).annotate(
annotated_compact, large
)
annotated_compact = sv.BoxAnnotator(color=PALETTE, thickness=2).annotate(
annotated_compact, large
)
annotated_compact = sv.LabelAnnotator(
color=PALETTE, text_scale=0.5, text_thickness=1
).annotate(annotated_compact, large, labels=large_labels)
plt.figure(figsize=(12, 7))
plt.imshow(cv2.cvtColor(annotated_compact, cv2.COLOR_BGR2RGB))
plt.axis("off")
plt.title(
f"CompactMask (filtered) -- {len(large)} instance(s) "
f"| {dense_bytes / 1024:.0f} KB dense -> {crop_bytes / 1024:.0f} KB crops"
)
plt.tight_layout()
plt.show()
# %% [markdown]
# ### 4.5 Per-instance crop
#
# `compact.crop(i)` decodes only the bounding-box crop for instance `i` as a
# `(H_crop, W_crop)` bool array -- no full mask materialised.
# %%
assert isinstance(detections.mask, sv.CompactMask) and len(detections) > 0
crop = detections.mask.crop(0)
bbox = detections.mask.bbox_xyxy[0].astype(int)
fig, axes = plt.subplots(1, 2, figsize=(10, 4))
axes[0].imshow(image_rgb[bbox[1] : bbox[3], bbox[0] : bbox[2]])
axes[0].set_title("Image crop (instance 0)")
axes[0].axis("off")
axes[1].imshow(crop, cmap="gray")
axes[1].set_title(f"Mask crop ({crop.shape[1]} x {crop.shape[0]} px)")
axes[1].axis("off")
plt.tight_layout()
plt.show()
full_px = H * W
crop_kb = crop.nbytes / 1024
print(f"Full-res mask slot: {H} x {W} = {full_px / 1024:.0f} KB")
print(f"Compact crop: {crop.shape[0]} x {crop.shape[1]} = {crop_kb:.1f} KB")
# %% [markdown]
# ## 5. SAM3
#
# `sv.Detections.from_sam3()` is the other headline in 0.28.0.
# SAM3 segments objects by free-text prompts -- `"person"`, `"bag"`, any phrase.
# supervision parses both the PCS and PVS response formats into a standard
# `sv.Detections`, with `class_id` set to the prompt index.
#
# This section runs only when `ROBOFLOW_API_KEY` is available.
# %%
import base64
import os
from typing import Optional
import requests
try:
from google.colab import userdata # type: ignore[import, unused-ignore]
ROBOFLOW_API_KEY: str = userdata.get("ROBOFLOW_API_KEY") or ""
except Exception:
ROBOFLOW_API_KEY = os.environ.get("ROBOFLOW_API_KEY", "")
PROMPTS = ["person", "bag"]
sam3_detections: Optional[sv.Detections] = None
assert ROBOFLOW_API_KEY
with open(image_path, "rb") as _f:
_img_b64 = base64.b64encode(_f.read()).decode("utf-8")
_response = requests.post(
f"https://api.roboflow.com/inferenceproxy/seg-preview?api_key={ROBOFLOW_API_KEY}",
json={
"image": {"type": "base64", "value": _img_b64},
"prompts": [{"type": "text", "text": p} for p in PROMPTS],
"output_prob_thresh": 0.3,
},
headers={"Content-Type": "application/json"},
timeout=60,
)
_response.raise_for_status()
sam3_result: dict[str, Any] = _response.json()
sam3_detections = sv.Detections.from_sam3(sam3_result=sam3_result, resolution_wh=(W, H))
print(f"SAM3 detections: {len(sam3_detections)}")
if sam3_detections.class_id is not None:
for idx, prompt in enumerate(PROMPTS):
count = int((sam3_detections.class_id == idx).sum())
print(f" [{idx}] '{prompt}': {count} instance(s)")
# %%
assert sam3_detections is not None and len(sam3_detections) > 0
sam3_labels = (
[PROMPTS[c] for c in sam3_detections.class_id]
if sam3_detections.class_id is not None
else []
)
SAM3_PALETTE = sv.ColorPalette.from_hex(["#ff6b6b", "#4ecdc4"])
annotated_sam3 = image_bgr.copy()
annotated_sam3 = sv.MaskAnnotator(color=SAM3_PALETTE, opacity=0.45).annotate(
annotated_sam3, sam3_detections
)
annotated_sam3 = sv.BoxAnnotator(color=SAM3_PALETTE, thickness=2).annotate(
annotated_sam3, sam3_detections
)
annotated_sam3 = sv.LabelAnnotator(
color=SAM3_PALETTE, text_scale=0.5, text_thickness=1
).annotate(annotated_sam3, sam3_detections, labels=sam3_labels)
plt.figure(figsize=(12, 7))
plt.imshow(cv2.cvtColor(annotated_sam3, cv2.COLOR_BGR2RGB))
plt.axis("off")
plt.title(f"SAM3 -- from_sam3() -- {len(sam3_detections)} instance(s)")
plt.tight_layout()
plt.show()
# %% [markdown]
# ## 6. Other notable changes in 0.28.0
#
# ### `VideoInfo.fps` is now `float`
#
# NTSC frame rates (23.976, 29.97, 59.94) were silently truncated to `int`.
# Wrap with `int()` at call sites that require an integer.
# %%
import collections
from supervision.assets import VideoAssets
video_path = download_assets(VideoAssets.PEOPLE_WALKING)
info = sv.VideoInfo.from_video_path(video_path)
print(f"fps: {info.fps} ({type(info.fps).__name__}) -- was int before 0.28.0")
fps_int = int(info.fps)
buf: collections.deque[sv.Detections] = collections.deque(maxlen=fps_int)
trace = sv.TraceAnnotator(trace_length=fps_int)
print(f"deque maxlen: {buf.maxlen} (= int({info.fps}))")
# %% [markdown]
# ### `sv.ByteTrack` deprecated
#
# `sv.ByteTrack` still works in 0.28.0 and 0.29.0 but emits a
# `DeprecationWarning`. Migrate to `ByteTrackTracker` from the external
# [`trackers`](https://pypi.org/project/trackers/) package before 0.30.0.
#
# ```python
# # Before
# tracker = sv.ByteTrack()
# detections = tracker.update_with_detections(detections)
#
# # After (pip install trackers)
# from trackers import ByteTrackTracker
# tracker = ByteTrackTracker()
# detections = tracker.update(detections)
# ```
# %% [markdown]
# ## 7. Next steps
#
# - [`sv.CompactMask` docs](https://supervision.roboflow.com/develop/detection/compact_mask/)
# -- full API reference: `resize`, `merge`, `with_offset`
# - [`sv.Detections.from_sam3` docs](https://supervision.roboflow.com/develop/detection/core/)
# -- PCS and PVS format reference
# - [RF-DETR docs](https://github.com/roboflow/rf-detr)
# -- training, export, and deployment
# - [Full changelog](https://supervision.roboflow.com/develop/changelog/)
# -- every change in 0.28.0

View File

@ -4,7 +4,7 @@ requires = [ "setuptools>=61" ]
[project]
name = "supervision"
version = "0.31.0.dev0"
version = "0.28.0"
description = "A set of easy-to-use utils that will come in handy in any Computer Vision project"
readme = "README.md"
keywords = [
@ -23,7 +23,7 @@ maintainers = [
authors = [
{ name = "Roboflow et al.", email = "develop@roboflow.com" },
]
requires-python = ">=3.10"
requires-python = ">=3.9"
classifiers = [
"Development Status :: 5 - Production/Stable",
"Intended Audience :: Developers",
@ -33,6 +33,7 @@ classifiers = [
"Operating System :: Microsoft :: Windows",
"Operating System :: POSIX :: Linux",
"Programming Language :: Python :: 3 :: Only",
"Programming Language :: Python :: 3.9",
"Programming Language :: Python :: 3.10",
"Programming Language :: Python :: 3.11",
"Programming Language :: Python :: 3.12",
@ -47,20 +48,17 @@ classifiers = [
"Typing :: Typed",
]
dependencies = [
"av>=14.2",
"defusedxml>=0.7.1",
"matplotlib>=3.6",
"numpy>=1.21.2",
"opencv-python>=4.5.5.64",
"pillow>=9.4",
"pydeprecate>=0.9,<0.12",
"pydeprecate>=0.7,<0.8",
"pyyaml>=5.3",
"requests>=2.26",
"scipy>=1.10",
"tqdm>=4.62.3"
]
optional-dependencies.geotiff = [
"rasterio>=1.3", # 1.3 introduced stable window-read API and CRS.is_projected
]
optional-dependencies.metrics = [
"pandas>=2",
]
@ -76,36 +74,34 @@ dev = [
"nbconvert>=7.14.2",
"notebook>=6.5.3,<8",
"pre-commit>=3.8",
"pytest>=7.2.2,<10",
"pytest>=7.2.2,<9",
"pytest-cov>=4,<8",
"scikit-learn>=1.7",
"tox>=4.11.4",
"types-tqdm",
]
docs = [
"mike>=2",
"mkdocs-git-committers-plugin-2>=2.4.1; python_version>='3.10' and python_version<'4'",
"mkdocs-git-committers-plugin-2>=2.4.1; python_version>='3.9' and python_version<'4'",
"mkdocs-git-revision-date-localized-plugin>=1.2.4",
"mkdocs-jupyter>=0.24.3",
"mkdocs-material[imaging]>=9.7",
"mkdocstrings>=1,<1.1",
"mkdocstrings-python>=2,<3",
"mkdocstrings>=0.25.2,<0.31",
"mkdocstrings-python>=1.10.9,<2", # todo: breaking changes in 2.x
]
build = [
"build>=1,<1.6",
"build>=0.10,<1.5",
"twine>=5.1.1,<7",
"wheel>=0.40,<0.48",
]
[tool.setuptools]
packages.find.where = [ "src" ]
packages.find.include = [ "supervision*" ]
include-package-data = false
package-data.supervision = [ "py.typed" ]
# exclude = [ "docs*", "tests*", "examples*" ]
packages.find.where = [ "src" ]
packages.find.include = [ "supervision*" ]
# exclude = [ "docs*", "tests*", "examples*" ]
[tool.ruff]
target-version = "py310"
target-version = "py39"
line-length = 88
indent-width = 4
# Exclude a variety of commonly ignored directories.
@ -167,7 +163,6 @@ lint.per-file-ignores."src/**" = [
]
lint.per-file-ignores."tests/**" = [
"S101", # Use of `assert` detected
"S603", # `subprocess` call: subprocess with hardcoded args in test utilities is safe
]
lint.unfixable = []
# Allow unused variables when underscore-prefixed.
@ -183,33 +178,35 @@ lint.pydocstyle.convention = "google"
lint.pylint.max-args = 20
[tool.codespell]
ignore-words-list = "STrack,sTrack,strack"
skip = "*.ipynb"
count = true
quiet-level = 3
ignore-words-list = "STrack,sTrack,strack"
[tool.mypy]
mypy_path = "src"
explicit_package_bases = true
python_version = "3.9"
ignore_missing_imports = false
python_version = "3.10"
warn_unused_ignores = true
explicit_package_bases = true
strict = true
mypy_path = "src"
overrides = [
{ module = [ "examples.*", "tests.*" ], ignore_errors = true },
{ module = [ "supervision._cv2" ], warn_unused_ignores = false },
# exclude = [
# "docs",
# "test",
# "examples",
# "setup.py",
# ]
{ module = [
"tests.*",
"examples.*",
], ignore_errors = true },
]
[tool.pytest]
ini_options.testpaths = [ "src", "tests" ]
ini_options.norecursedirs = [ ".git", ".venv", "build", "dist", "docs", "examples", "notebooks" ]
ini_options.addopts = [
"--doctest-modules",
"--color=yes",
]
ini_options.filterwarnings = [
"error::DeprecationWarning",
]
ini_options.doctest_optionflags = "ELLIPSIS NORMALIZE_WHITESPACE"
[tool.autoflake]

24
release_process.md Normal file
View File

@ -0,0 +1,24 @@
# Release Process
This doc outlines how supervision is released into production.
It assumes you already have the code changes, as well as a draft of the release notes.
1. Make sure you have all required changes were merged into `develop`.
2. Create and merge a PR, merging `develop` into `main`, containing:
- A commit that updates the project version in `pyproject.toml`.
- All changes made during the release.
3. Tag the commit with the new supervision version.
- make sure to pull from `main` !
- Verify that the latest merge commits exists. `git log`.
- Run `git tag x.y.z`, with your version
- Check with `git log`.
- Run `git push origin --tags`
- Upon pushing the Github release, the [PyPi](https://pypi.org/project/supervision/) should update to the new version. Check this!
4. Open and merge a PR, merging `main` into `develop`.
5. Update the docs by running the [Supervision Release Documentation Workflow 📚](https://github.com/roboflow/supervision/actions/workflows/publish-release-docs.yml) workflow from GitHub.
- Select the `main` branch from the dropdown.
6. Create a release on GitHub.
- Go to releases
- Assign the release notes to the tag created in step 3.
- Publish the release.

View File

@ -1,5 +1,4 @@
import importlib.metadata as importlib_metadata
from typing import TYPE_CHECKING, Any
try:
# This will read version from pyproject.toml
@ -53,10 +52,7 @@ from supervision.detection.line_zone import (
LineZoneAnnotatorMulticlass,
)
from supervision.detection.tools.csv_sink import CSVSink
from supervision.detection.tools.inference_slicer import (
InferenceSlicer,
WindowedRasterDataset,
)
from supervision.detection.tools.inference_slicer import InferenceSlicer
from supervision.detection.tools.json_sink import JSONSink
from supervision.detection.tools.polygon_zone import PolygonZone, PolygonZoneAnnotator
from supervision.detection.tools.smoother import DetectionsSmoother
@ -66,7 +62,6 @@ from supervision.detection.utils.boxes import (
move_boxes,
pad_boxes,
scale_boxes,
xyxyxyxy_to_xyxy,
)
from supervision.detection.utils.converters import (
is_compressed_rle,
@ -91,21 +86,16 @@ from supervision.detection.utils.iou_and_nms import (
box_iou_batch_with_jaccard,
box_non_max_merge,
box_non_max_suppression,
box_soft_non_max_suppression,
mask_iou_batch,
mask_non_max_merge,
mask_non_max_suppression,
mask_soft_non_max_suppression,
oriented_box_iou_batch,
oriented_box_non_max_merge,
oriented_box_non_max_suppression,
)
from supervision.detection.utils.masks import (
calculate_masks_centroids,
contains_holes,
contains_multiple_segments,
filter_segments_by_distance,
mask_to_roi,
move_masks,
)
from supervision.detection.utils.polygons import (
@ -131,14 +121,11 @@ from supervision.geometry.utils import get_polygon_center
from supervision.key_points.annotators import (
EdgeAnnotator,
VertexAnnotator,
VertexEllipseAnnotator,
VertexEllipseAreaAnnotator,
VertexEllipseHaloAnnotator,
VertexEllipseOutlineAnnotator,
VertexLabelAnnotator,
)
from supervision.key_points.core import KeyPoints
from supervision.metrics.detection import ConfusionMatrix, MeanAveragePrecision
from supervision.tracker.byte_tracker.core import ByteTrack
from supervision.utils.conversion import cv2_to_pillow, pillow_to_cv2
from supervision.utils.file import list_files_with_extensions
from supervision.utils.image import (
@ -147,13 +134,11 @@ from supervision.utils.image import (
get_image_resolution_wh,
grayscale_image,
letterbox_image,
load_image_from_url,
overlay_image,
resize_image,
scale_image,
tint_image,
)
from supervision.utils.image_window import ImageWindow
from supervision.utils.notebook import plot_image, plot_images_grid
from supervision.utils.video import (
FPSMonitor,
@ -163,12 +148,8 @@ from supervision.utils.video import (
process_video,
)
if TYPE_CHECKING:
from supervision.tracker.byte_tracker.core import ByteTrack
__all__ = [
"LMM",
"VLM",
"BackgroundOverlayAnnotator",
"BaseDataset",
"BlurAnnotator",
@ -198,7 +179,6 @@ __all__ = [
"HeatMapAnnotator",
"IconAnnotator",
"ImageSink",
"ImageWindow",
"InferenceSlicer",
"JSONSink",
"KeyPoints",
@ -224,21 +204,15 @@ __all__ = [
"TraceAnnotator",
"TriangleAnnotator",
"VertexAnnotator",
"VertexEllipseAnnotator",
"VertexEllipseAreaAnnotator",
"VertexEllipseHaloAnnotator",
"VertexEllipseOutlineAnnotator",
"VertexLabelAnnotator",
"VideoInfo",
"VideoSink",
"WindowedRasterDataset",
"approximate_polygon",
"box_iou",
"box_iou_batch",
"box_iou_batch_with_jaccard",
"box_non_max_merge",
"box_non_max_suppression",
"box_soft_non_max_suppression",
"calculate_masks_centroids",
"calculate_optimal_line_thickness",
"calculate_optimal_text_scale",
@ -247,7 +221,6 @@ __all__ = [
"contains_multiple_segments",
"crop_image",
"cv2_to_pillow",
"denormalize_boxes",
"draw_filled_polygon",
"draw_filled_rectangle",
"draw_image",
@ -269,20 +242,15 @@ __all__ = [
"is_valid_hex",
"letterbox_image",
"list_files_with_extensions",
"load_image_from_url",
"mask_iou_batch",
"mask_non_max_merge",
"mask_non_max_suppression",
"mask_soft_non_max_suppression",
"mask_to_polygons",
"mask_to_rle",
"mask_to_roi",
"mask_to_xyxy",
"move_boxes",
"move_masks",
"oriented_box_iou_batch",
"oriented_box_non_max_merge",
"oriented_box_non_max_suppression",
"overlay_image",
"pad_boxes",
"pillow_to_cv2",
@ -303,15 +271,4 @@ __all__ = [
"xyxy_to_polygons",
"xyxy_to_xcycarh",
"xyxy_to_xywh",
"xyxyxyxy_to_xyxy",
]
def __getattr__(name: str) -> Any:
"""Lazily resolve deprecated compatibility exports."""
if name == "ByteTrack":
from supervision.tracker.byte_tracker.core import ByteTrack as byte_track
globals()[name] = byte_track
return byte_track
raise AttributeError(f"module {__name__!r} has no attribute {name!r}")

View File

@ -1,302 +0,0 @@
"""Private OpenCV compatibility surface used by Supervision."""
from __future__ import annotations
import warnings
from typing import Any
import numpy.typing as npt
from supervision._cv2._color import _cvt_color, _merge, _split
from supervision._cv2._common import BackendUnavailableError
from supervision._cv2._components import (
_connected_components,
_connected_components_with_stats,
)
from supervision._cv2._contours import _find_contours
from supervision._cv2._drawing import (
_circle,
_draw_contours,
_ellipse,
_fill_poly,
_line,
_polylines,
_rectangle,
)
from supervision._cv2._geometry import (
_approx_poly_dp,
_contour_area,
_intersect_convex_convex,
)
from supervision._cv2._image import (
_add_weighted,
_convert_scale_abs,
_copy_make_border,
_flip,
_imdecode,
_imencode,
_imread,
_imwrite,
_mean,
_resize,
)
from supervision._cv2._text import _get_text_size, _put_text
from supervision._cv2._transform import _blur
from supervision._cv2._video import (
_video_writer_fourcc,
_VideoCapture,
_VideoWriter,
)
from supervision._cv2.constants import (
_BORDER_CONSTANT,
_CAP_PROP_FPS,
_CAP_PROP_FRAME_COUNT,
_CAP_PROP_FRAME_HEIGHT,
_CAP_PROP_FRAME_WIDTH,
_CAP_PROP_POS_FRAMES,
_CC_STAT_AREA,
_CHAIN_APPROX_SIMPLE,
_COLOR_BGR2GRAY,
_COLOR_BGR2RGB,
_COLOR_GRAY2BGR,
_COLOR_HSV2BGR,
_COLOR_RGB2BGR,
_FONT_HERSHEY_COMPLEX,
_FONT_HERSHEY_COMPLEX_SMALL,
_FONT_HERSHEY_DUPLEX,
_FONT_HERSHEY_PLAIN,
_FONT_HERSHEY_SCRIPT_COMPLEX,
_FONT_HERSHEY_SCRIPT_SIMPLEX,
_FONT_HERSHEY_SIMPLEX,
_FONT_HERSHEY_TRIPLEX,
_FONT_ITALIC,
_IMREAD_COLOR,
_IMREAD_UNCHANGED,
_INTER_LINEAR,
_INTER_NEAREST,
_LINE_4,
_LINE_8,
_LINE_AA,
_RETR_TREE,
)
try:
import cv2
except (ImportError, OSError):
_IS_CV2_AVAILABLE = False
else:
_IS_CV2_AVAILABLE = True
if _IS_CV2_AVAILABLE:
from cv2 import ( # type: ignore[attr-defined]
BORDER_CONSTANT,
CAP_PROP_FPS,
CAP_PROP_FRAME_COUNT,
CAP_PROP_FRAME_HEIGHT,
CAP_PROP_FRAME_WIDTH,
CAP_PROP_POS_FRAMES,
CC_STAT_AREA,
COLOR_BGR2GRAY,
COLOR_BGR2RGB,
COLOR_GRAY2BGR,
COLOR_HSV2BGR,
COLOR_RGB2BGR,
FONT_HERSHEY_COMPLEX,
FONT_HERSHEY_COMPLEX_SMALL,
FONT_HERSHEY_DUPLEX,
FONT_HERSHEY_PLAIN,
FONT_HERSHEY_SCRIPT_COMPLEX,
FONT_HERSHEY_SCRIPT_SIMPLEX,
FONT_HERSHEY_SIMPLEX,
FONT_HERSHEY_TRIPLEX,
FONT_ITALIC,
IMREAD_COLOR,
IMREAD_UNCHANGED,
INTER_LINEAR,
INTER_NEAREST,
LINE_4,
LINE_8,
LINE_AA,
VideoCapture,
VideoWriter,
VideoWriter_fourcc, # type: ignore[attr-defined]
addWeighted,
approxPolyDP,
blur,
circle,
connectedComponents,
connectedComponentsWithStats,
contourArea,
convertScaleAbs,
copyMakeBorder,
cvtColor,
drawContours,
ellipse,
fillPoly,
flip,
getTextSize,
imdecode,
imencode,
imread,
imwrite,
intersectConvexConvex,
line,
mean,
merge,
polylines,
putText,
rectangle,
resize,
split,
)
from cv2 import (
findContours as _find_contours_impl,
)
BACKEND_NAME = "opencv"
else:
BACKEND_NAME = "fallback"
warnings.warn(
"OpenCV (`opencv-python`) is not installed; supervision is using its "
"pure NumPy fallback backend instead. Some operations may be slower "
"or behave slightly differently. Install `opencv-python` for full "
"performance and compatibility.",
stacklevel=2,
)
BORDER_CONSTANT = _BORDER_CONSTANT
CAP_PROP_FPS = _CAP_PROP_FPS
CAP_PROP_FRAME_COUNT = _CAP_PROP_FRAME_COUNT
CAP_PROP_FRAME_HEIGHT = _CAP_PROP_FRAME_HEIGHT
CAP_PROP_FRAME_WIDTH = _CAP_PROP_FRAME_WIDTH
CAP_PROP_POS_FRAMES = _CAP_PROP_POS_FRAMES
CC_STAT_AREA = _CC_STAT_AREA
COLOR_BGR2GRAY = _COLOR_BGR2GRAY
COLOR_BGR2RGB = _COLOR_BGR2RGB
COLOR_GRAY2BGR = _COLOR_GRAY2BGR
COLOR_HSV2BGR = _COLOR_HSV2BGR
COLOR_RGB2BGR = _COLOR_RGB2BGR
FONT_HERSHEY_COMPLEX = _FONT_HERSHEY_COMPLEX
FONT_HERSHEY_COMPLEX_SMALL = _FONT_HERSHEY_COMPLEX_SMALL
FONT_HERSHEY_DUPLEX = _FONT_HERSHEY_DUPLEX
FONT_HERSHEY_PLAIN = _FONT_HERSHEY_PLAIN
FONT_HERSHEY_SCRIPT_COMPLEX = _FONT_HERSHEY_SCRIPT_COMPLEX
FONT_HERSHEY_SCRIPT_SIMPLEX = _FONT_HERSHEY_SCRIPT_SIMPLEX
FONT_HERSHEY_SIMPLEX = _FONT_HERSHEY_SIMPLEX
FONT_HERSHEY_TRIPLEX = _FONT_HERSHEY_TRIPLEX
FONT_ITALIC = _FONT_ITALIC
IMREAD_COLOR = _IMREAD_COLOR
IMREAD_UNCHANGED = _IMREAD_UNCHANGED
INTER_LINEAR = _INTER_LINEAR
INTER_NEAREST = _INTER_NEAREST
LINE_4 = _LINE_4
LINE_8 = _LINE_8
LINE_AA = _LINE_AA
# Fallback implementations when cv2 is not available. Suppress type errors because
# fallback types differ from cv2 types, but are functionally equivalent.
VideoCapture = _VideoCapture # type: ignore[assignment,misc]
VideoWriter = _VideoWriter # type: ignore[assignment,misc]
VideoWriter_fourcc = _video_writer_fourcc # type: ignore[assignment]
addWeighted = _add_weighted # type: ignore[assignment]
approxPolyDP = _approx_poly_dp # type: ignore[assignment]
blur = _blur # type: ignore[assignment]
circle = _circle # type: ignore[assignment]
connectedComponents = _connected_components # type: ignore[assignment]
connectedComponentsWithStats = _connected_components_with_stats # type: ignore[assignment]
contourArea = _contour_area # type: ignore[assignment]
convertScaleAbs = _convert_scale_abs # type: ignore[assignment]
copyMakeBorder = _copy_make_border # type: ignore[assignment]
cvtColor = _cvt_color # type: ignore[assignment]
drawContours = _draw_contours # type: ignore[assignment]
ellipse = _ellipse # type: ignore[assignment]
fillPoly = _fill_poly # type: ignore[assignment]
_find_contours_impl = _find_contours
flip = _flip # type: ignore[assignment]
getTextSize = _get_text_size # type: ignore[assignment]
imdecode = _imdecode # type: ignore[assignment]
imencode = _imencode # type: ignore[assignment]
imread = _imread # type: ignore[assignment]
imwrite = _imwrite # type: ignore[assignment]
intersectConvexConvex = _intersect_convex_convex # type: ignore[assignment]
line = _line # type: ignore[assignment]
mean = _mean # type: ignore[assignment]
merge = _merge # type: ignore[assignment]
polylines = _polylines # type: ignore[assignment]
putText = _put_text # type: ignore[assignment]
rectangle = _rectangle # type: ignore[assignment]
resize = _resize # type: ignore[assignment]
split = _split # type: ignore[assignment]
def find_contours(image: npt.NDArray[Any]) -> list[npt.NDArray[Any]]:
"""Return the contour geometry required by mask-to-polygon conversion."""
contours, _ = _find_contours_impl(image, _RETR_TREE, _CHAIN_APPROX_SIMPLE)
return list(contours)
__all__ = [
"BACKEND_NAME",
"BORDER_CONSTANT",
"CAP_PROP_FPS",
"CAP_PROP_FRAME_COUNT",
"CAP_PROP_FRAME_HEIGHT",
"CAP_PROP_FRAME_WIDTH",
"CAP_PROP_POS_FRAMES",
"CC_STAT_AREA",
"COLOR_BGR2GRAY",
"COLOR_BGR2RGB",
"COLOR_GRAY2BGR",
"COLOR_HSV2BGR",
"COLOR_RGB2BGR",
"FONT_HERSHEY_COMPLEX",
"FONT_HERSHEY_COMPLEX_SMALL",
"FONT_HERSHEY_DUPLEX",
"FONT_HERSHEY_PLAIN",
"FONT_HERSHEY_SCRIPT_COMPLEX",
"FONT_HERSHEY_SCRIPT_SIMPLEX",
"FONT_HERSHEY_SIMPLEX",
"FONT_HERSHEY_TRIPLEX",
"FONT_ITALIC",
"IMREAD_COLOR",
"IMREAD_UNCHANGED",
"INTER_LINEAR",
"INTER_NEAREST",
"LINE_4",
"LINE_8",
"LINE_AA",
"BackendUnavailableError",
"VideoCapture",
"VideoWriter",
"VideoWriter_fourcc",
"addWeighted",
"approxPolyDP",
"blur",
"circle",
"connectedComponents",
"connectedComponentsWithStats",
"contourArea",
"convertScaleAbs",
"copyMakeBorder",
"cvtColor",
"drawContours",
"ellipse",
"fillPoly",
"find_contours",
"flip",
"getTextSize",
"imdecode",
"imencode",
"imread",
"imwrite",
"intersectConvexConvex",
"line",
"mean",
"merge",
"polylines",
"putText",
"rectangle",
"resize",
"split",
]

View File

@ -1,94 +0,0 @@
"""Private color and channel-operation fallbacks."""
from __future__ import annotations
from collections.abc import Sequence
from typing import Any
import numpy as np
import numpy.typing as npt
from supervision._cv2._common import _cast_array_like_opencv
from supervision._cv2.constants import (
_COLOR_BGR2GRAY,
_COLOR_BGR2RGB,
_COLOR_GRAY2BGR,
_COLOR_HSV2BGR,
_COLOR_RGB2BGR,
)
def _cvt_color(image: npt.NDArray[Any], code: int) -> npt.NDArray[Any]:
"""Convert the BGR, RGB, grayscale, and 8-bit HSV formats used by Supervision."""
if code in (_COLOR_BGR2RGB, _COLOR_RGB2BGR):
if image.ndim != 3 or image.shape[2] != 3:
raise ValueError("BGR/RGB conversion requires a three-channel image")
return np.ascontiguousarray(image[..., ::-1])
if code == _COLOR_GRAY2BGR:
if image.ndim != 2:
raise ValueError("GRAY2BGR conversion requires a two-dimensional image")
return np.repeat(image[..., np.newaxis], 3, axis=2)
if code == _COLOR_BGR2GRAY:
if image.ndim != 3 or image.shape[2] != 3:
raise ValueError("BGR2GRAY conversion requires a three-channel image")
if image.dtype == np.uint8:
values = image.astype(np.uint32)
weighted = (
values[..., 0] * 3735
+ values[..., 1] * 19235
+ values[..., 2] * 9798
+ (1 << 14)
) >> 15
return weighted.astype(np.uint8)
float_values = (
image[..., 0].astype(np.float64) * 0.114
+ image[..., 1].astype(np.float64) * 0.587
+ image[..., 2].astype(np.float64) * 0.299
)
return _cast_array_like_opencv(float_values, image.dtype)
if code == _COLOR_HSV2BGR:
if image.ndim != 3 or image.shape[2] != 3:
raise ValueError("HSV2BGR conversion requires a three-channel image")
return _hsv_to_bgr(image)
raise ValueError(f"Unsupported color conversion code: {code}")
def _hsv_to_bgr(image: npt.NDArray[Any]) -> npt.NDArray[Any]:
"""Convert OpenCV's 8-bit HSV representation to BGR."""
values = image.astype(np.float64)
hue = values[..., 0] / 30.0
saturation = values[..., 1] / 255.0
value = values[..., 2] / 255.0
chroma = value * saturation
sector_index = np.floor(hue).astype(np.int64) % 6
sector = hue - np.floor(hue)
x = chroma * (1 - np.abs(((sector_index + sector) % 2) - 1))
match = value - chroma
zeros = np.zeros_like(chroma)
red = np.choose(sector_index, (chroma, x, zeros, zeros, x, chroma))
green = np.choose(sector_index, (x, chroma, chroma, x, zeros, zeros))
blue = np.choose(sector_index, (zeros, zeros, x, chroma, chroma, x))
bgr = np.stack((blue + match, green + match, red + match), axis=-1) * 255
return _cast_array_like_opencv(bgr, image.dtype)
def _split(image: npt.NDArray[Any]) -> tuple[npt.NDArray[Any], ...]:
"""Split an image into contiguous single-channel arrays."""
if image.ndim == 2:
return (np.ascontiguousarray(image),)
return tuple(
np.ascontiguousarray(image[..., index]) for index in range(image.shape[2])
)
def _merge(channels: Sequence[npt.NDArray[Any]]) -> npt.NDArray[Any]:
"""Merge single-channel arrays along their final axis."""
if not channels:
raise ValueError("At least one channel is required")
return np.ascontiguousarray(np.stack(channels, axis=-1))

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