How can I perform histogram equalization on separated H, S, V components?
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I have an hsv image. And I splitted the hsv image into separate h, s, v components.. I want to perform a histogram equalization on these h,s, v components.. What should I do?
5 个评论
Vishnu R
2015-10-14
Varun Pai
2015-10-14
Hope you have got the answer.
Vishnu R
2015-10-14
Varun Pai
2015-10-15
I think you have misunderstood the concept of HSV images. You can only convert an RGB image to HSV using rgb2hsv(). These matrices are MxNx3 matrices (ie 3 layers) each layer representing Hue, Saturation and Value.
Vishnu R
2015-10-16
回答（1 个）
Varun Pai
2015-10-14
0 个投票
Dear Vishnu,
histogram equalization of the 'Hue' and 'Saturation' component is not recommended, because these two factors holds the color information of the image. You can do the Histogram equalization on the 'Value' component. Later combine them together.
Once you get H,S,V separately, V is just a MxN grayscale image. You can use histeq() function. Please see link for more information. http://in.mathworks.com/help/images/ref/histeq.html
V_hist = histeq(V);
1 个评论
MemonMohsi
2019-2-19
Dear Varun/Vishnu,
can you guide me after histogram equalization of V as mentioned in answer how do I combine that equalization value to my RGB image so that i can imshow my RGB image with improved contrast?
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2019-2-19
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