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2012-09-12 18:41:37 -0500 asked a question findCirclesGrid

has anyone used findCirclesGrid? I have had no luck using it for a couple of patterns I tried which are pretty easy to detect. the return value is false

Links to images http://robocraft.ru/files/opencv/acircles_pattern.png http://cdn1.stuff4scrapbooking.com/catalog/product/cache/4/image/9df78eab33525d08d6e5fb8d27136e95/4/7/474765.jpg