Reshaping noisy coin into a circle form

Question

I\'m doing a coin detection using JavaCV (OpenCV wrapper) but I have a little problem when the coins are connected. If I try to erode them to separate these coins they loose

Answer 1

The usual approach for erosion-based object recognition is to label continuous regions in the eroded image and then re-grow them until they match the regions in the original image. Hough circles is a better idea in your case, though.