Launched October 1, 2024
BGS Library
A C++ Background Subtraction Library with wrappers for Python, MATLAB, Java and GUI on QT
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The BGSLibrary (Background Subtraction Library) is a comprehensive C++ framework designed for background subtraction in computer vision applications, particularly for detecting moving objects in video streams. The library is implemented in C++ and is based on OpenCV, a popular computer vision library.
BGSLibrary is a C++ framework for background subtraction with Python, MATLAB, Java wrappers and a Qt GUI.
- for
- Computer vision developers needing background-segmentation algorithms.
- pricing
- open source
- license
- MIT
works withOpenCVPythonMATLABJavaQt
Key features
6 features of BGS Library
- Multiple algorithms — Implements dozens of background subtraction methods such as LOBSTER, SuBSENSE, PAWCS.
- C++ core — High-performance library built on OpenCV for real-time video processing.
- Language wrappers — Provides Python (pybgs), MATLAB and Java bindings for easy integration.
- Qt GUI — Includes a graphical interface for visualizing foreground masks and testing algorithms.
- CMake integration — CMake target export enables simple linking with other CMake projects.
- Docker support — Dockerfiles are available for containerised builds and testing.
Use cases
- Detect moving objects in surveillance video streams.
- Perform traffic flow analysis by segmenting vehicles from road footage.
- Monitor wildlife activity using background subtraction on camera traps.
- Pre-process video for object tracking pipelines.
BGS Library FAQ
How do I install the Python wrapper?+
Run `pip install pybgs`; a C++ compiler and OpenCV headers are required for the build.
Can I use the library with OpenCV 4?+
Yes, the library is built on OpenCV and supports recent OpenCV versions.
Is there a pre-built binary for Windows?+
The repository provides source; Windows builds require a compatible compiler and the CMake build steps.
How do I contribute new algorithms?+
Add the algorithm class under `modules`, update the IBGS interface, and submit a pull request.
What license is BGSLibrary released under?+
The project is released under the MIT license.
Summarized by DevHunt from github.com · Sep 29, 2026. Details may change; check the official site.
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