How to sum binary sub pixels from 150x150 pixels?
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I have a binary image 150x150 pixels, I would like to divided into 4 part so 1st part pixel ration (X:Y) will be (1:75, 1:75) and 2nd part will be (1:75, 76:end) and 3rd will be (76:end, 1:75) and 4th will be (76:end, 76:end). Now I would like to calculate sum of 1st, 2nd, 3rd and 4th divided part.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/155457/image.jpeg)
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Image Analyst
le 5 Août 2016
Another way:
upperLeftSum = sum(sum(binaryImage(1:75, 1:75)))
upperRightSum = sum(sum(binaryImage(1:75, 76:end)))
lowerLeftSum = sum(sum(binaryImage(76:end, 1:75)))
lowerRightSum = sum(sum(binaryImage(76:end, 76:end)))
Plus de réponses (1)
Azzi Abdelmalek
le 4 Août 2016
Modifié(e) : Azzi Abdelmalek
le 4 Août 2016
A=randi([0 1],150) % Example
b=mat2cell(A,75*ones(2,1),75*ones(2,1))
out=cellfun(@(x) sum(x(:)),b)
If you have Image Processing toolbox
out=blockproc(A,[75,75],@(x) sum(x.data(:)))
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