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i use my codes and your codes in a lot of image. I always get an error when drawing detected circle on the image.

for(int i=0;i<circles.size(); i++)="" {="" point="" center(cvround(circles[i][0]),cvround(circles[i][1]));="" int="" radius="cvRound(circles[i][2]);" circle(original,center,radius,scalar(0,0,255),2,8,0);="" }<="" p="">

C:\fakepath\error.png