How to check the color variation in the ROI of an image

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hamed abdulaziz on 15 Feb 2014

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Answered: Image Analyst on 15 Feb 2014

Hi All,

I have many coloured images,please could anyone tell me how to check the color variation in the ROI (segmented image) of an image?

thanks in advance

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hamed abdulaziz on 15 Feb 2014

Could anyone answer me please?

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Image Analyst on 15 Feb 2014

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One reasonable way would be to calculate the mean color of the image. Then calculate the delta E (color difference) from every pixel to that mean color. Then histogram the delta E image. See http://www.mathworks.com/matlabcentral/fileexchange/31118-color-segmentation-by-delta-e-color-difference

Or you might want to calculate the Color Frequency Image

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