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how to get relative entropy thresholding for an image ?

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kalaivaani
kalaivaani on 11 Oct 2013
Answered: Peter Eze on 28 Feb 2018
to get the only the red lesions from retinal image by subtracting the relative entropy thresholded image from tophat transformation of the same image
what is operation of entropy filter in image processing?
can i get the formula for relative entropy thresholding

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Peter Eze
Peter Eze on 28 Feb 2018
Rentropy= sum(sum(X.*log(X./Y))); X and Y are either distributions or vector data from a distribution.

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