How to find the gray level of local maxima in an image histogram?
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I have several images with an histogram similar to the one I attatched, and I need to know the gray level corresponding to the local maxima. I've tried findpeaks() but it won't work because there are a lot of bins with 0 counts so it is always finding local maxima. I've tried to remove the 0's but then I don't know the original position of the value and I can't find the corresponding gray level