I have a project where i want to detect and count bubbles in a test tube. I am using opencv; i used hough circle detecting algorithm. But its of no use for this purpose Any one know any kind of algorithm to count specific objects or any shape analyzing techniques? any kind of information or ideas are welcomed thanks in advance YOurs SaRIn.... -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist