split image to 16*16 blocks and show it

hi i want split image to 16*16 blocks and show it nearly like this image but 16*16 please help me

Answer 1

[Ameer Hamza]

You will need this FEX::MAT2TILES to make things easier. Download it and place in your MATLAB path. Then use the following code to draw the image blocks

I = imread('filename');
rows = 5; % define how many rows of block
cols = 4; % define how many cols of block
sizeI = size(I);
blocks = mat2tiles(I, ceil(sizeI(1:2)./[rows cols]))';

for i = 1:rows*cols
  subplot(rows, cols, i);
  imshow(blocks{i});
end

[tomy gn]

Undefined function or variable 'mat2tiles'.

[Ameer Hamza]

You need to download the package from this link: https://www.mathworks.com/matlabcentral/fileexchange/35085-mat2tiles--divide-array-into-equal-sized-sub-arrays and place it in MATLAB path. I mentioned this FEX submission in my answer.

[Samia Nushrat]

How can I get back the original image after split?