| OpenCV 4.3.0 Open Source Computer Vision

Classes | Namespaces | Typedefs
nonfree.hpp File Reference
`#include "opencv2/features2d.hpp"`

## Classes
class | cv::xfeatures2d::SURF
| Class for extracting Speeded Up Robust Features from an image [13] . More...

## Namespaces
| cv
| "black box" representation of the file storage associated with a file on disk.
| cv::xfeatures2d

## Typedefs
typedef SURF | cv::xfeatures2d::SurfDescriptorExtractor
typedef SURF | cv::xfeatures2d::SurfFeatureDetector