code for sampling an image to form patches

If any one knows the code for sampling an image to make the larg image into small sections then please share it with me.

Answer 1

[Walter Roberson]

patch_cell = mat2cell( 8*ones(1,size(IMAGE,1)/8), 8*ones(1,size(IMAGE,2)/8), size(IMAGE,3) );

for 8 x 8 patches.

Then patch_cell{5,19} would be the 5th row of patches, 19th patch over.

[ANCY]

I mean how to make small subdivisions of image from a large image.That is how to make small samples from large sample?If u know the full matlab code for subsampling the image then please share it with me

[Walter Roberson]

This code does exactly that, using 8 x 8 pixel subdivisions of the image array named IMAGE. If you want to use a different size such as 64 x 64, replace the 8's by 64's.

Answer 2

[Image Analyst]

See the FAQ: http://matlab.wikia.com/wiki/FAQ#How_do_I_split_an_image_into_non-overlapping_blocks.3F