How can i divide a 64*64 grayscale image into 8*8 blocks?

Please How can i divide a 64*64 grayscale image into 8*8 blocks then get the entropy and index of each block?

Answer 1

[KSSV]

Refer: https://in.mathworks.com/matlabcentral/answers/362262-i-have-a-32-32-matrix-i-want-to-take-mean-of-each-4-4-so-that-the-matrix-is-reduced-to-8-8-array#answer_286773