What are the ways in which to quantify the texture of a portion of an image? I'm trying to detect areas that are similar in texture in an image, sort of a measure of "how closely similar are they?"

So the question is what information about the image (edge, pixel value, gradient etc.) can be taken as containing its texture information.

Please note that this is not based on template matching.

Wikipedia didn't give much details on actually implementing any of the texture analyses.

image-processing opencv textures
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