how to find uniformity of an image

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Mohammad Golam Kibria
Mohammad Golam Kibria el 3 de Nov. de 2011
I have an image I (colored image).
I have standard deviation and entropy of the image say 7 and 5
How to get the uniformity of that image? can any body help with the formula.
Thanks.

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Image Analyst
Image Analyst el 3 de Nov. de 2011
What's wrong with using the standard deviation? If it's zero, it's uniform.
sd = std(imageArray(:));

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