find the matching coordinates in two matrix

Question

prashant singh 2017-9-14

0
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https://ww2.mathworks.cn/matlabcentral/answers/356681-find-the-matching-coordinates-in-two-matrix

评论： Sayand Sathish 2020-10-9

i have matrix containing certain x and y coordinates of images. I have another matrix which have x and y coordinates of images. I want to find which indexes are same by comparing two matrix. Something like:

A = [256 345; 300 356; 400 234; 454 345;100 200] B =[256 345;400 234;] , then the result matrix should be C =[1;0;1;0;0].

I know there is a direct approach like iterating through the matrices and comparing them . I want to know is there any easy and computationally less expensive way of doing this