How to find the image as in which channel it is in?

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Hi, I have an RGB image and I want to know the channel it belongs to.
whether red, green or blue. Here is the Image.
I know it is in blue channel but I just want to know how to find that...
Please assist me.
Thanks...

Accepted Answer

Image Analyst
Image Analyst on 17 Oct 2014
Look for the channel that has the highest mean. To get the means:
redMean = mean2(rgbImage(:,:,1))
greenMean = mean2(rgbImage(:,:,2))
blueMean = mean2(rgbImage(:,:,3))

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