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I am interested in circle detection on an image. I have used the Blobdetection library, however this code does not work correctly if many circles are present and merge togheter (many circles merged togheter are counted as a single blob). I have read about the Hough Circle function of Opencv. However I have not understood how this function can be used in processing once the opencv library is imported (the code I found on the web does not work in processing). Anyone can help? Thanks.