spliting image to 16x16 blocks

hi i have an image with size 320x240 i want to split it to 16x16 blocks but i don't use for loop. i don't process these blocks and i only save theme that after 30 frame i do LBP 3d on it? can you help me

Answer 1

[Jan]

SplitImage = reshape(Image, 16, 20, 16, 15);
SplitImage = permute(SplitImage, [1, 3, 2, 4]);
SplitImage = reshape(SplitImage, [16, 16, 300]);

Answer 2

[Walter Roberson]

SplitImage = mat2cell(Image, 16 * ones(1, size(Image,1) / 16), 16 * ones(1, size(Image,2) / 16), size(Image,3));

[Matt J]

MAT2CELL does use a for-loop implicitly, though I suspect the OP is excessively concerned about loops.

Also, I'll just mention this file FEX:mat2tiles, which offers an easier interface.

 SplitImage=mat2tiles(Image,[16,16]);

[nadia naji]

thanks for your help i use this function

[Matt J]

Glad it does what you want, though if speed was your goal, Jan's method is about 4 times faster.