29 - Key points, detectors and descriptors in openCV

Keypoints are points of interest in an image that can be used to compare images and perform tasks such as image alignment and registration. These points can be automatically detected (defined) by the system using algorithms such as SIFT, SURF, and ORB. Some of these algorithms can also define the descriptors to make key points really useful for image processing tasks. This tutorial introduces a few key point detectors and descriptors. The code from this video is available at: https://github.com/bnsreenu/python_fo...