shimat/opencvsharp

Features

• Computer Vision Libraries - Provides a comprehensive .NET wrapper for OpenCV's computer vision capabilities.
• .NET Wrappers - Provides a .NET wrapper that mirrors the native OpenCV C/C++ API for image processing and computer vision tasks.
• Cascade Classifier Detections - Ships cascade classifier object detection using Haar-like and LBP features from .NET code.
• Keypoint Descriptor Matchers - Detects keypoints and computes descriptors with brute-force or FLANN-based matching.
• .NET Feature Matching - Detects keypoints and computes descriptors using algorithms like AKAZE, BRISK, or FAST, and matches them with brute-force or FLANN-based methods.
• Multi-Channel Pixel Vectors - Holds tuples of 2 to 6 elements of various numeric types for pixel data or small vectors.
• Mat-to-Bitmap Converters - Converts OpenCV Mat objects to GDI+ Bitmap or WPF WriteableBitmap for .NET UI display.
• Image File IO - Ships comprehensive image file reading and writing capabilities with format and compression options.
• Color Space Conversions - Selects source and target color spaces for color conversion operations between formats like RGB and HSV.
• .NET Image Processing Libraries - Provides a managed .NET wrapper for OpenCV image processing and computer vision operations.
• Mat-to-Bitmap Converters - Converts OpenCV Mat objects to GDI+ Bitmap or WPF WriteableBitmap for .NET UI display.
• OpenCV Wrappers - Wraps native OpenCV functions for image processing and computer vision tasks in C#.
• Stereo Vision Reconstruction - Estimates camera parameters and computes depth maps from stereo image pairs for 3D reconstruction.
• Stereo Vision Rectification - Transforms stereo image pairs so corresponding epipolar lines become horizontal for depth computation.
• Disk Image Format Manipulation - Loads and saves images with control over format, compression, and color depth parameters.
• C-API Wrappers - Wraps native OpenCV C functions into a .NET API that mirrors the original C/C++ interface.
• OpenCV Wrappers - Mirrors the native OpenCV C/C++ API for image processing and analysis in .NET applications.
• Native Bindings - Wraps native OpenCV functions by declaring C-style extern methods and marshalling data across the managed-unmanaged boundary.
• Managed-to-Native Function Calls - Calls native OpenCV functions from .NET using P/Invoke with an API that mirrors the C/C++ style.
• API Surface Mirroring - Exposes OpenCV functions as static methods that mirror the native C/C++ API surface.
• Unmanaged Resource Disposals - Provides automatic disposal of unmanaged OpenCV resources to prevent memory leaks in .NET applications.
• Geometric Primitives - Stores points, rectangles, rotated rectangles, circles, lines, and sizes in 2D space.
• Mat-to-Bitmap Converters - Converts OpenCV Mat objects to GDI+ Bitmap or WPF WriteableBitmap for .NET UI display.
• Perspective-n-Point Solvers - Estimates the pose of a calibrated camera from a set of 3D-to-2D point correspondences.
• Graph-Cut Foreground Segmenters - Extracts foreground objects using iterative graph-cut segmentation initialized by a bounding rectangle.
• Feature Descriptor Computation - Chains keypoint detection, descriptor extraction, and brute-force or FLANN-based matching.
• Descriptor Matchers - Matches feature descriptors across images using brute-force or FLANN-based algorithms.
• Keypoint Descriptor Extractors - Detects salient image keypoints and computes their descriptors using AKAZE, BRISK, or FAST.
• Camera Calibration - Estimates intrinsic and extrinsic camera parameters from a set of calibration pattern images.
• Multi-Camera Calibration Systems - Computes camera parameters using chessboard or circle grid patterns captured from different angles.
• Pattern Corner Detection - Locates internal corners of a chessboard pattern for camera calibration.
• Corner Feature Detections - Identifies corner features using AGAST or FAST algorithms for keypoint detection.
• Stereo Calibration - Estimates the geometric relationship between two cameras from paired chessboard images.
• Adaptive Thresholding Methods - Implements adaptive thresholding that computes local thresholds from pixel neighborhoods.
• Cascade Classifier Object Detectors - Detects objects by scanning image regions with pre-trained Haar or LBP cascade classifiers.
• Background Segmentation - Separates moving objects from static scenes using Gaussian mixture and K-nearest neighbors models.
• Epipolar Geometry Estimators - Estimates the geometric relationship between two views from matching point pairs.
• Flood Fill Algorithms - Fills connected regions of an image starting from a seed pixel with a specified color.
• Geometric Shape Detection - Finds geometric primitives like circles and lines in images using the Hough transform algorithm.
• Histogram Analysis - Calculates pixel intensity distributions and measures histogram similarity using chi-squared or Earth Mover's Distance.
• Adaptive Contrast Enhancers - Enhances local contrast using Contrast Limited Adaptive Histogram Equalization.
• Video Frame Capture - Captures frames from cameras or video files and writes processed frames to output video streams.
• Video Foreground Segmentation Models - Ships Gaussian mixture and K-nearest neighbours models to separate foreground from static scenes.
• Image Frequency Domain Transforms - Applies discrete cosine and Fourier transforms to convert images between spatial and frequency domains.
• Binary Image Distance Transforms - Computes distance transforms on binary images to measure pixel proximity to background regions.
• Pixel Connectivity Analysis - Labels connected regions of foreground pixels in binary images and returns blob properties.
• Luminance Thresholders - Binarizes images using locally computed thresholds that adapt to varying illumination conditions.
• Edge-Preserving Filters - Smooths images while preserving sharp edges using edge-preserving decomposition methods.
• Managed Pixel Buffer Conversions - Converts OpenCV Mat pixel data to GDI+ Bitmap or WPF WriteableBitmap for .NET UI display.
• Application Frameworks - Wrapper for the OpenCV computer vision library.
• Image Processing - Cross-platform wrapper for OpenCV.

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