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How to sum binary sub pixels from 150x150 pixels?

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Kh. Islam
Kh. Islam 2016-8-4
评论： Kh. Islam 2016-10-14
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.

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Image Analyst
Image Analyst 2016-8-5
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)))

更多回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2016-8-4
编辑：Azzi Abdelmalek 2016-8-4
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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