Intersection of two cells arrays of 256 by 256 by 3 matrices

I have two cells A and B. A and B has RGB images A={img1,img2,img3} A={img4,img2,img6} How can I find the intersection between two cells???

[KSSV]

Does images have positions? I mean X and Y data?

[A. P. B.]

Yes for example img1=256 by 256 by 3

Answer 1

[Stephen Jue]

I do not know of a way to directly find the intersection between two cells, but you can recast your two cells A and B as matrices and use the "intersect" function, like so:

A = [img1(:), img2(:), img3(:)]';
B = [img4(:), img2(:), img6(:)]';
[~, indicesA, indicesB] = intersect(A, B, 'rows');

This flattens each image into a single row of a matrix, then uses "intersect" with the "rows" option to find the intersection of A and B by row. The variables "indicesA" and "indicesB" will contain the corresponding indices of A and B that are part of the intersection.