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

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hamed abdulaziz el 15 de Feb. de 2014

Respondida: Image Analyst el 15 de Feb. de 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

hamed abdulaziz el 15 de Feb. de 2014

Could anyone answer me please?

Image Analyst el 15 de Feb. de 2014

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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