'Contour detection on the checker shadow illusion
I have a 3D image on which I need to detect contour. However, there is an artifact on my 3D image which looks like the checker shadow illusion (https://en.wikipedia.org/wiki/Checker_shadow_illusion).
Since all algorithm I could find start by setting a gray threshold to binarize the images, the contour detection algorithm of my software fails to detect the correct contour.
Are there algorithm that don't rely on binary image to detect contour? Or maybe there is some kind of pre-processing I can do to solve this shadow issue?
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