If there is a 512*512 image which has to be sampled into 16*16 image patches?how
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hamed abdulaziz
am 31 Dez. 2013
Kommentiert: Image Analyst
am 1 Jan. 2014
If there is a 512*512 image which has to be sampled into 16*16 image patches,how can I do that?
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Matt J
am 1 Jan. 2014
Bearbeitet: Matt J
am 1 Jan. 2014
patches = mat2tiles(YourImage,[16,16]);
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Image Analyst
am 1 Jan. 2014
The shapes are rectangles. Do you mean you want to see where the rectangles are, say in lines superimposed over the original image where the patches were extracted from? Or do you want to see every patch as a separate sub image like the FAQ does?
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Image Analyst
am 31 Dez. 2013
Bearbeitet: Image Analyst
am 1 Jan. 2014
There are nice demos for this in the FAQ: http://matlab.wikia.com/wiki/FAQ#How_do_I_split_an_image_into_non-overlapping_blocks.3F
It does it two different ways. One using mat2cell(), and one using just simple indexing. It's a full blown demo with sample images and display of each sub-image that it extracted so you can see what it did.
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Jan
am 31 Dez. 2013
The easiest way would be to let two FOR loops crop the parts from the original array. The details depend on what you want as output.
Walter Roberson
am 31 Dez. 2013
patch_cell = mat2cell( I, 16*ones(1,size(I,1)/16), 16*ones(1,size(I,2)/16), size(I,3) );
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