mse calculation for part of matrix
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I have 2 matrix one is original image and second is the attacked image(512*512), now I should divide both of them to 31*31 blocks and then do DCT on these blocks, after that I consider 3 areas in each blocks ( suppose I divide block with 3 diagonal lines) and I should compute mse between DCT of original block and attacked block in each area? how can I do it?
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