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

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A. P. B.
A. P. B. 2017-6-20
评论： A. P. B. 2017-6-23
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???

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Stephen Jue
Stephen Jue 2017-6-22
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.

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