| OpenCV 4.3.0 Open Source Computer Vision

Classes
Non-free 2D Features Algorithms
Extra 2D Features Framework

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

## 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.