Multiple image histogram on the same figure

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chess
chess on 4 Aug 2014
Commented: Image Analyst on 4 Aug 2014
Hi I would like to know how I can plot multiple histogram on the same figure with different color next to each other using imhist command. I know how to do it using hist for a vector but I am looking for doing exactly same thing but for images. something like uploaded image but using imhist.

Accepted Answer

Image Analyst
Image Analyst on 4 Aug 2014
Why can't you just use hist() or histc(), and bar() or plot()???
  2 Comments
Image Analyst
Image Analyst on 4 Aug 2014
You have to vectorize the array first:
counts = hist(array2d(:), 256);
Otherwise you'll get a histogram for every column in the image.

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