Computer Vision Open Source Algorithm Implementations
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WARNING: this page is not and will never be exhaustive but only try to gather robust implementations of Computer Vision state of the art
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General Image Processing
- OpenCV
- (C/C++ code, BSD lic) Image manipulation, matrix manipulation, transforms
- Torch3Vision
- (C/C++ code, BSD lic) Basic image processing, matrix manipulation and feature extraction algorithms: rotation, flip, photometric normalisations (Histogram Equalization, Multiscale Retinex, Self-Quotient Image or Gross-Brajovic), edge detection, 2D DCT, 2D FFT, 2D Gabor, PCA to do Eigen-Faces, LDA to do Fisher-Faces. Various metrics (Euclidean, Mahanalobis, ChiSquare, NormalizeCorrelation, TangentDistance, ...)
- GradientShop
- (C/C++ code, GPL lic) GradientShop: A Gradient-Domain Optimization Framework for Image and Video Filtering
- ImLab
- (C/C++ code, MIT lic) A Free Experimental System for Image Processing (loading, transforms, filters, histogram, morphology, ...)
- CIMG
- (C/C++ code, GPL and LGPL lic) CImg Library is an open source C++ toolkit for image processing
- Generic Image Library (GIL) - boost integration
- (C/C++ code, MIT lic) Adobe open source C++ Generic Image Library (GIL)
Image Acquisition, Decoding & encoding
- FFMPEG
- (C/C++ code, LGPL or GPL lic) Record, convert and stream audio and video (lot of codec)
- OpenCV
- (C/C++ code, BSD lic) PNG, JPEG,... images, avi video files, USB webcam,...
- Torch3Vision
- (C/C++ code, BSD lic) Video file decoding/encoding (ffmpeg integration), image capture from a frame grabber or from USB, Sony pan/tilt/zoom camera control using VISCA interface
- lib VLC
- (C/C++ code, GPL lic) Used by VLC player: record, convert and stream audio and video
- Live555
- (C/C++ code, LGPL lic) RTSP streams
- ImageMagick
- (C/C++ code, GPL lic) Loading & saving DPX, EXR, GIF, JPEG, JPEG-2000, PDF, PhotoCD, PNG, Postscript, SVG, TIFF, and more
- DevIL
- (C/C++ code, LGPL lic) Loading & saving various image format
- FreeImage
- (C/C++ code, GPL & FPL lic) PNG, BMP, JPEG, TIFF loading
Segmentation
- OpenCV
- (C/C++ code, BSD lic) Pyramid image segmentation
- Branch-and-Mincut
- (C/C++ code, Microsoft Research Lic) Branch-and-Mincut Algorithm for Image Segmentation
- Efficiently solving multi-label MRFs ( Readme )
- (C/C++ code) Segmentation, object category labelling, stereo
Machine Learning
- Torch
- (C/C++ code, BSD lic) Gradient machines ( multi-layered perceptrons, radial basis functions, mixtures of experts, convolutional networks and even time-delay neural networks), Support vector machines, Ensemble models (bagging, adaboost), Non-parametric models (K-nearest-neighbors, Parzen regression and Parzen density estimator), distributions (Kmeans, Gaussian mixture models, hidden Markov models, input-output hidden Markov models, and Bayes classifier), speech recognition tools
Object Detection
- OpenCV
- (C/C++ code, BSD lic) Viola-jones face detection (Haar features)
- Torch3Vision
- (C/C++ code, BSD lic) MLP & cascade of Haar-like classifiers face detection
- Hough Forests
- (C/C++ code, Microsoft Research Lic) Class-Specific Hough Forests for Object Detection
- Efficient Subwindow Object Detection
- (C/C++ code, Apache Lic) Christoph Lampert "Efficient Subwindow" algorithms for Object Detection
Object Category Labelling
- Efficiently solving multi-label MRFs ( Readme )
- (C/C++ code) Segmentation, object category labelling, stereo
Optical flow
- OpenCV
- (C/C++ code, BSD lic) Horn & Schunck algorithm, Lucas & Kanade algorithm, Lucas-Kanade optical flow in pyramids, block matching
- GPU-KLT+FLOW
- (C/C++/OpenGL/Cg code, LGPL) Gain-Adaptive KLT Tracking and TV-L1 optical flow on the GPU
Features Extraction & Matching
- SIFT by R. Hess
- (C/C++ code, GPL lic) SIFT feature extraction & RANSAC matching
- OpenSURF
- (C/C++ code) SURF feature extraction algorihtm (kind of fast SIFT)
- ASIFT (from IPOL )
- (C/C++ code, Ecole Polytechnique and ENS Cachan for commercial Lic) Affine SIFT (ASIFT)
- VLFeat (formely Sift++)
- (C/C++ code) SIFT, MSER, k-means, hierarchical k-means, agglomerative information bottleneck, and quick shift
- SiftGPU
- A GPU Implementation of Scale Invariant Feature Transform (SIFT)
- Groupsac
- (C/C++ code, GPL lic) An enhance version of RANSAC that considers the correlation between data points
Nearest Neighbors matching
- FLANN
- (C/C++ code, BSD lic) Approximate Nearest Neighbors ( Fast Approximate Nearest Neighbors with Automatic Algorithm Configuration )
- ANN
- (C/C++ code, LGPL lic) Approximate Nearest Neighbor Searching
Tracking
- OpenCV
- (C/C++ code, BSD lic) Kalman, Condensation, CAMSHIFT, Mean shift, Snakes
- KLT: An Implementation of the Kanade-Lucas-Tomasi Feature Tracker
- (C/C++ code, public domain) Kanade-Lucas-Tomasi Feature Tracker
- GPU_KLT
- (C/C++/OpenGL/Cg code, ) A GPU-based Implementation of the Kanade-Lucas-Tomasi Feature Tracker
- GPU-KLT+FLOW
- (C/C++/OpenGL/Cg code, LGPL) Gain-Adaptive KLT Tracking and TV-L1 optical flow on the GPU
Simultaneous localization and mapping
- Real-Time SLAM - SceneLib
- (C/C++ code, LGPL lic) Real-time vision-based SLAM with a single camera
- PTAM
- (C/C++ code, Isis Innovation Limited lic) Parallel Tracking and Mapping for Small AR Workspaces
Camera Calibration & constraint
- OpenCV
- (C/C++ code, BSD lic) Chessboard calibration, calibration with rig or pattern
- Geometric camera constraint - Minimal Problems in Computer Vision
- Minimal problems in computer vision arise when computing geometrical models from image data. They often lead to solving systems of algebraic equations.
- Camera Calibration Toolbox for Matlab
- (Matlab toolbox) Camera Calibration Toolbox for Matlab by Jean-Yves Bouguet (C implementation in OpenCV)
Multi-View Reconstruction
- Bundle Adjustment - SBA
- (C/C++ code, GPL lic) A Generic Sparse Bundle Adjustment Package Based on the Levenberg-Marquardt Algorithm
- Bundle Adjustment - SSBA
- (C/C++ code, LGPL lic) Simple Sparse Bundle Adjustment (SSBA)
Stereo
- Efficiently solving multi-label MRFs ( Readme )
- (C/C++ code) Segmentation, object category labelling, stereo
Structure from motion
- Bundler
- (C/C++ code, GPL lic) A structure-from-motion system for unordered image collections
- Patch-based Multi-view Stereo Software ( Windows version )
- (C/C++ code, GPL lic) A multi-view stereo software that takes a set of images and camera parameters, then reconstructs 3D structure of an object or a scene visible in the images
- libmv - work in progress
- (C/C++ code, MIT lic) A structure from motion library
