ImageApplyIndexed

ImageApplyIndexed[f,image] applies the function f to the list of channel values for each pixel in image, giving the row and column index of each pixel as a second argument to f.

ImageApplyIndexed[f,{image1,image2,…}] applies f to the sequence of corresponding pixel values taken from each imagei, giving the corresponding row and column index of pixels as the last argument to f.

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