How to calculate Multi Block DCT of an image where block size are 2x2; 4x4 and 8x8? Thanks

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Hi, I am trying to calculate MBDCT of a 2D gray image where block size is 2x2 or 4x4 or 8x8. I have used dct2 function before. But as far I understand, dct2 function calculates the entire image matrix. So can you please tell me how to code this? Thanks a lot for your kind guidance.

回答(1 个)

Abhishek Ballaney
https://in.mathworks.com/help/images/ref/dct2.html

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