applying functions to patches of an image then reassembling

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cameron lord 2020-12-2

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回答： Shubham Rawat 2020-12-4

hi there, sorry I am new to matlab

I have matrix size 600x1000 that is an image. I want to apply a function to each 51x51 patch of this image so that I gain 1 output from every patch then but them back into a 2D matrix where the outputs represent the position of the 51x51 patch within the image to make a plot.

thanks for your help

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cameron lord 2020-12-2

cropped_im=im(1:561, 1:969);

figure;

imagesc(cropped_im);

imc_patch=mat2tiles(cropped_im,[51 51]);

patch_output=zeros(11,19);

for i=1:11

for j=1:19

patch_output(i,j)=sum((gabor2D.*imc_patch{i,j}),'all')

end

end

patch_output_rectified=rectify(patch_output)

imagesc(patch_output_rectified)

this is currently what I am using

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Shubham Rawat 2020-12-4

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Hi Cameron,

You may look into this question, it is doing the same what you wanted:

Convert image into Patches of size 64*64 and get each patch - MATLAB Answers - MATLAB Central (mathworks.com)

Hope This Helps!

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