How do I separate a concatenated image?

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Sneha
Sneha 2017-12-17
评论： Sneha 2017-12-18
I had a lena image P of size m*n and I extracted the 3 components R, G, and B each of size m*n. Then I stitched the 3 components using horzcat() function and got an image PS of size m*3n. And I performed cat map operations and get the image Prt of size m*3n. Now I need to extract or separate 3 components each of size m*n. That is, I need to separate the entire matrix as 3 columns as first 256 columns to R next 256 to G etc... How can i do this?

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Image Analyst
Image Analyst 2017-12-17
Try this:
R = Prt(:, 1:m);
G = Prt(:, m+1:2*m)
B = Prt(:, 2*m+1:end);

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