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version (1.29 KB) by Brett Shoelson
Conveniently extract individual z-planes (e.g., RGB) from an image or axes with one line.

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Updated 01 Sep 2016

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Extract individual planes from an MxNx3 image, or from an axis containing an MxNx3 image.

[R,G,B] = getImagePlanes(I)
Extracts the individual (color) planes from the MxNx3 image specified in I. I may be an image or an axes containing a single MXNx3 image.
I (finally) grew tired of typing:
r = img(:,:,1);
g = img(:,:,2);
b = img(:,:,3);
Now, it's just:
[r,g,b] = getImagePlanes(img);
[r,g,b] = getImagePlanes(gca);

instead! Simple, but useful!

Cite As

Brett Shoelson (2020). getImagePlanes.m (, MATLAB Central File Exchange. Retrieved .

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Updated license

MATLAB Release Compatibility
Created with R2014a
Compatible with any release
Platform Compatibility
Windows macOS Linux