"compare two Images using ORB"
image_ret=cv_match2image(image1,image2,nfeatures,scaleFactor,color)
Input Image 1
Input Image 2
Number of features to compare
Pyramid decimation ratio, greater than 1. scaleFactor==2 means the classical pyramid, where each Next level has 4x less pixels than the previous, but such a big scale factor will degrade feature matching scores dramatically. On the other hand, too close to 1 scale factor will mean that to cover certain scale Range you will need more pyramid levels And so the speed will suffer
color of keypoints drawn on 2 Input image
Result of comparison
Easy Caompare of two images
This function uses ORB to extract features from two images and then uses BFmatcher to compare these features