An overview of the contrib modules and a small explanation
This list gives an overview of all modules available inside the contrib repository. These are also the correct names for disabling the building of a specific module by adding
$ cmake -D OPENCV_EXTRA_MODULES_PATH=<opencv_contrib>/modules -D BUILD_opencv_reponame=OFF <opencv_source_directory>-
opencv_adas: Advanced Driver Assistance Systems module with Forward Collision Warning.
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opencv_bgsegm: Improved Adaptive Background Mixture Model for Real-time Tracking / Visual Tracking of Human Visitors under Variable-Lighting Conditions.
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opencv_bioinspired: Biologically inspired vision models and derivated tools.
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opencv_ ccalib: Custom Calibration Pattern for 3D reconstruction.
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opencv_cvv: GUI for Interactive Visual Debugging of Computer Vision Programs.
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opencv_datasets: Interface for interfacing with existing computer vision databases.
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opencv_datasettools: Tools for working with different datasets.
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opencv_face: Recently added face recognition software which is not yet stabalized.
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opencv_latentsvm: Implementation of the LatentSVM detector algorithm.
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opencv_line_descriptor: Binary descriptors for lines extracted from an image.
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opencv_matlab: OpenCV Matlab Code Generator.
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opencv_optflow: Optical Flow Algorithms for tracking points.
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opencv_reg: Image Registration module.
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opencv_rgbd: RGB-Depth Processing module.
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opencv_saliency: Saliency API, understanding where humans focus given a scene.
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opencv_surface_matching: Surface Matching Algorithm Through 3D Features.
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opencv_text: Scene Text Detection and Recognition in Natural Scene Images.
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opencv_tracking: Long-term optical tracking API.
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opencv_xfeatures2d: Extra 2D Features Framework containing experimental and non-free 2D feature algorithms.
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opencv_ximgproc: Extended Image Processing: Structured Forests / Domain Transform Filter / Guided Filter / Adaptive Manifold Filter / Joint Bilateral Filter / Superpixels.
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opencv_xobjdetect: Integral Channel Features Detector Framework.
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opencv_xphoto: Additional photo processing algorithms: Color balance / Denoising / Inpainting.
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opencv_stereo: Stereo Correspondence done with different descriptors: Census / CS-Census / MCT / BRIEF / MV / RT.