How can I do the histogram equalization?
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Hello
I think that the histogram equalization on the 3 components of a color image has the effect of increasing the contrast in order to facilitate the detection of the region of interest that is darker than the other part of the image. How can I do this using matlab? thanks
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Answers (2)
Aneesh Balaji
on 14 Nov 2012
Hey For a color image split into 3 components and perform histeq on each of them and then recombine them.
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Image Analyst
on 14 Nov 2012
Using histeq() on individual color channels is not a good method. You will introduce color artifacts which may be severe. You're best off converting to hsv color space, then using histeq() or adapthisteq() on only the v channel, then recombine and transform back to rgb color space.
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Image Analyst
on 16 Nov 2012
Histogram equalization is not necessary for that purpose. In fact, it's rarely necessary for anything. And it looks like you'd do best with a texture filter, like entropyfilt() or stdfilt(), at least for the one image you posted.
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