how to divide image into 16 block ?

hello,

i want help in the implementation of divide image into block ?

thanks

Answer 1

[Mohammad Abouali]

Have you checked im2col()?

Let's say you want to divide your image into blocks of size M,N then something like this should work:

B = im2col(inputImage,[m n],'distinct');

since you want 16 blocks, so pretty much 4x4 blocks then

m=ceil(size(inputImage,1)/4)
n=ceil(size(inputImage,2)/4)

However, I have to ask you a question. Are you sure that it is necessary to divide your image into blocks? I would look into blockproc() and see if I can use that before dividing the image into blocks.