OpenCV API Reference

• Introduction
  • API Concepts
• core. The Core Functionality
  • Basic Structures
  • Command Line Parser
  • Basic C Structures and Operations
  • Dynamic Structures
  • Operations on Arrays
  • XML/YAML Persistence
  • XML/YAML Persistence (C API)
  • Clustering
  • Utility and System Functions and Macros
  • OpenGL interoperability
  • Intel® IPP Asynchronous C/C++ Converters
  • Optimization Algorithms
• imgproc. Image Processing
  • Image Filtering
  • Geometric Image Transformations
  • Miscellaneous Image Transformations
  • Drawing Functions
  • ColorMaps in OpenCV
  • Description
  • Histograms
  • Structural Analysis and Shape Descriptors
  • Motion Analysis and Object Tracking
  • Feature Detection
  • Object Detection
• imgcodecs. Image file reading and writing
  • Reading and Writing Images
• videoio. Media I/O
  • Reading and Writing Video
• highgui. High-level GUI and Media I/O
  • User Interface
  • Qt New Functions
• video. Video Analysis
  • Motion Analysis and Object Tracking
• calib3d. Camera Calibration and 3D Reconstruction
  • Camera Calibration and 3D Reconstruction
• features2d. 2D Features Framework
  • Feature Detection and Description
  • Common Interfaces of Feature Detectors
  • Common Interfaces of Descriptor Extractors
  • Common Interfaces of Descriptor Matchers
  • Drawing Function of Keypoints and Matches
  • Object Categorization
• objdetect. Object Detection
  • Cascade Classification
• ml. Machine Learning
  • Statistical Models
  • Normal Bayes Classifier
  • K-Nearest Neighbors
  • Support Vector Machines
  • Decision Trees
  • Boosting
  • Random Trees
  • Expectation Maximization
  • Neural Networks
  • Logistic Regression
  • Training Data
• flann. Clustering and Search in Multi-Dimensional Spaces
  • Fast Approximate Nearest Neighbor Search
  • Clustering
• photo. Computational Photography
  • Inpainting
  • Denoising
  • HDR imaging
  • Decolorization
  • Seamless Cloning
  • Non-Photorealistic Rendering
• stitching. Images stitching
  • Stitching Pipeline
  • References
  • High Level Functionality
  • Camera
  • Features Finding and Images Matching
  • Rotation Estimation
  • Autocalibration
  • Images Warping
  • Seam Estimation
  • Exposure Compensation
  • Image Blenders
• cuda. CUDA-accelerated Computer Vision
  • CUDA Module Introduction
  • Initalization and Information
  • Data Structures
  • Object Detection
  • Camera Calibration and 3D Reconstruction
• cudaarithm. CUDA-accelerated Operations on Matrices
  • Core Operations on Matrices
  • Per-element Operations
  • Matrix Reductions
  • Arithm Operations on Matrices
• cudabgsegm. CUDA-accelerated Background Segmentation
  • Background Segmentation
• cudacodec. CUDA-accelerated Video Encoding/Decoding
  • Video Decoding
  • Video Encoding
• cudafeatures2d. CUDA-accelerated Feature Detection and Description
  • Feature Detection and Description
• cudafilters. CUDA-accelerated Image Filtering
  • Image Filtering
• cudaimgproc. CUDA-accelerated Image Processing
  • Color space processing
  • Histogram Calculation
  • Hough Transform
  • Feature Detection
  • Image Processing
• cudaoptflow. CUDA-accelerated Optical Flow
  • Optical Flow
• cudastereo. CUDA-accelerated Stereo Correspondence
  • Stereo Correspondence
• cudawarping. CUDA-accelerated Image Warping
  • Image Warping
• shape. Shape Distance and Matching
  • Shape Distance and Common Interfaces
  • Shape Transformers and Interfaces
  • Cost Matrix for Histograms Common Interface
  • EMD-L1
• superres. Super Resolution
  • Super Resolution
• videostab. Video Stabilization
  • Introduction
  • Global Motion Estimation
  • Fast Marching Method
• viz. 3D Visualizer
  • Viz
  • Widget
• bioinspired. Biologically inspired vision models and derivated tools
  • Human retina documentation
• cvv. GUI for Interactive Visual Debugging of Computer Vision Programs
  • CVV API Documentation
  • CVV GUI Documentation
• datasets. Framework for working with different datasets
  • Action Recognition
  • Face Recognition
  • Gesture Recognition
  • Human Pose Estimation
  • Image Registration
  • Image Segmentation
  • Multiview Stereo Matching
  • Object Recognition
  • Pedestrian Detection
  • SLAM
  • Text Recognition
• face. Face Recognition
  • FaceRecognizer Documentation
• Binary descriptors for lines extracted from an image
  • Introduction
  • A class to represent a line: KeyLine
  • Computation of binary descriptors
  • References
  • Summary
• optflow. Optical Flow Algorithms
  • Dense Optical Flow
  • Motion Templates
  • Optical flow input / output
• reg. Image Registration
  • Registration
• rgbd. RGB-Depth Processing
• Saliency API
  • Saliency classes:
• surface_matching. Surface Matching
  • Introduction to Surface Matching
  • Surface Matching Algorithm Through 3D Features
  • Rough Computation of Object Pose Given PPF
  • Pose Registration via ICP
  • Results
  • A Complete Sample
  • References
• text. Scene Text Detection and Recognition
  • Scene Text Detection
  • Scene Text Recognition
• tracking. Tracking API
  • Long-term optical tracking API
  • UML design:
  • Tracker classes:
• xfeatures2d. Extra 2D Features Framework
  • Experimental 2D Features Algorithms
  • Non-free 2D Features Algorithms
• ximgproc. Extended Image Processing
  • Structured forests for fast edge detection
  • Domain Transform filter
  • Guided Filter
  • Adaptive Manifold Filter
  • Joint Bilateral Filter
  • References
  • Superpixels
• xobjdetect. Extended object detection.
  • Integral Channel Features Detector
• xphoto. Additional photo processing algorithms
  • Color balance
  • Denoising
  • Inpainting