Freedom251 › Video Background Removal Software
OBS AI Matting
What OBS AI Matting is
OBS AI Matting is a free, open-source filter for OBS Studio that removes, blurs, or replaces webcam backgrounds in real time. It is designed for Linux and uses Robust Video Matting with ONNX Runtime and CUDA to create soft-edged cutouts that stay stable across frames. In transparent mode, you can put an OBS image, video, or color source behind the camera; a separate mode blurs the background. Auto light match can adjust the subject’s exposure and white balance to follow a selected OBS background source or scene.
Each filter offers controls for blur strength, brightness, gamma, matte hardness, and quality settings of 384, 512, or 720. The interface is available in English and Spanish and follows the OBS language setting. The project lists OBS Studio 28 or later, ONNX Runtime with CUDA, an NVIDIA GPU with CUDA and cuDNN, CMake, and a C++17 compiler as requirements. A roughly 107 MB RVM model is required but must be downloaded separately. If CUDA is unavailable or fails to initialize, the filter falls back to CPU, though the project recommends a GPU for real-time use. Installation options include an Arch Linux package and a manual CMake build and install.
Who it suits
OBS users on Linux who want to blur or replace a camera background, or place an OBS source behind the camera, may find it suitable. It fits users with the listed CUDA and NVIDIA GPU setup who want per-filter matting controls.
What it does well
- Free and open-source under GPL-2.0.
- Supports background blur and replacement with OBS sources.
- Auto light match adjusts exposure and white balance.
- Offers three quality settings: 384, 512, or 720.
- Interface follows OBS language, with English and Spanish available.
What to know first
- Linux is the only listed platform.
- The RVM model must be downloaded separately.
- Real-time use is recommended with a GPU.
- Manual installations may need rebuilding after ONNX Runtime upgrades.
Limits
The free filter requires a separately downloaded RVM model. The project recommends a GPU for real-time use, and manual installations may need rebuilding after ONNX Runtime upgrades.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free, open-source | OBS Studio filter for Linux; RVM model must be downloaded separately | Free |
As github.com lists them, read 8 Oct 2026. The maker's own page has the final word.
Getting started
- Open the project website on GitHub.
- Use the recommended Arch Linux package or follow the manual CMake build and install instructions.
- Meet the listed OBS Studio, ONNX Runtime with CUDA, NVIDIA GPU, CMake, and C++17 requirements.
- Download the roughly 107 MB RVM model separately.
- Add and configure the filter in OBS.
Verdict
Choose OBS AI Matting if you use OBS on Linux and want real-time background matting with controls for blur, light matching, and quality. Look elsewhere if Linux is not your platform or your setup does not meet the listed requirements for a GPU-based workflow.
Questions
Is OBS AI Matting free?
Yes. Its listed plan is Free, open-source at no cost.
Which platform does it support?
Linux is the listed platform.
What does the filter do?
It can remove, blur, or replace webcam backgrounds in OBS. Transparent mode supports OBS image, video, or color sources behind the camera.
What do I need to run it?
The project lists OBS Studio 28 or later, ONNX Runtime with CUDA, an NVIDIA GPU with CUDA and cuDNN, CMake, and a C++17 compiler.
Is the RVM model included?
No. The roughly 107 MB model is required and must be downloaded separately.
What license does it use?
The plugin is GPL-2.0. The separately downloaded RVM model is GPL-3.0.
Facts from OBS AI Matting's own pages
- Auto light match
- Auto light match adjusts the subject’s exposure and white balance to follow a selected OBS background source or scene. · github.com, 8 Oct 2026
- Background modes
- Transparent mode supports OBS image, video, or color sources behind the camera, and a built-in mode blurs the background. · github.com, 8 Oct 2026
- Compatibility caveat
- The README says manual installations must be rebuilt after ONNX Runtime upgrades or the filter may stop loading in OBS. · github.com, 8 Oct 2026
- Controls
- Per-filter controls include blur strength, brightness and gamma, matte hardness, and quality settings of 384, 512, or 720. · github.com, 8 Oct 2026
- CPU fallback
- If CUDA is unavailable or fails to initialize, the filter falls back to CPU; the project recommends a GPU for real-time use. · github.com, 8 Oct 2026
- Installation
- The README recommends installation through its Arch Linux package and also documents a manual CMake build and install. · github.com, 8 Oct 2026
- Licensing
- The plugin is released under GPL-2.0, while the separately downloaded RVM model is GPL-3.0. · github.com, 8 Oct 2026
- Localization
- The interface is available in English and Spanish and follows the OBS language automatically. · github.com, 8 Oct 2026
- Matting model
- It runs Robust Video Matting through ONNX Runtime and CUDA to produce soft edges and temporally stable cutouts. · github.com, 8 Oct 2026
- Model download
- The roughly 107 MB RVM model is required but not bundled and must be downloaded separately. · github.com, 8 Oct 2026
- Purpose
- The open-source OBS Studio filter removes, blurs, or replaces webcam backgrounds in real time using AI video matting on the GPU. · github.com, 8 Oct 2026
- Requirements
- The project lists OBS Studio 28 or later, ONNX Runtime with CUDA, an NVIDIA GPU with CUDA and cuDNN, CMake, and a C++17 compiler as requirements. · github.com, 8 Oct 2026
- Support and contributions
- The maintainer welcomes issues, feature requests, and pull requests through the project repository. · github.com, 8 Oct 2026
Where OBS AI Matting stands on Freedom251
- Video Background Removal Software#15 of 24