Classes
class	cv::xfeatures2d::SIFT
	Class for extracting keypoints and computing descriptors using the Scale Invariant Feature Transform (SIFT) algorithm by D. Lowe [125] . More...

class	cv::xfeatures2d::SURF
	Class for extracting Speeded Up Robust Features from an image [10] . More...

class	cv::cuda::SURF_CUDA
	Class used for extracting Speeded Up Robust Features (SURF) from an image. : More...

Typedefs
typedef SIFT	cv::xfeatures2d::SiftDescriptorExtractor

typedef SIFT	cv::xfeatures2d::SiftFeatureDetector

typedef SURF	cv::xfeatures2d::SurfDescriptorExtractor

typedef SURF	cv::xfeatures2d::SurfFeatureDetector

Detailed Description

This section describes two popular algorithms for 2d feature detection, SIFT and SURF, that are known to be patented. You need to set the OPENCV_ENABLE_NONFREE option in cmake to use those. Use them at your own risk.

Typedef Documentation

§ SiftDescriptorExtractor

typedef SIFT cv::xfeatures2d::SiftDescriptorExtractor

§ SiftFeatureDetector

typedef SIFT cv::xfeatures2d::SiftFeatureDetector

§ SurfDescriptorExtractor

typedef SURF cv::xfeatures2d::SurfDescriptorExtractor

§ SurfFeatureDetector

typedef SURF cv::xfeatures2d::SurfFeatureDetector