Identify circles with hough circle

Question

I am using opencv and C++..I have a face with different colors of circular marker points. I am using hough circle to identify those circles. My problem is that i am not able to understand the different parameters of the Hough function so that it identifies all the marker points.

http://www.google.mu/imgres?safe=off&espv=210&es_sm=122&biw=1366&bih=667&tbm=isch&tbnid=mNIRfBLT-iJgXM:&imgrefurl=http://www.utdallas.edu/~herve/abdi-ypaa-jmm2006.pdf&docid=KS8xrFEhIj5qnM&imgurl=x-raw-image:///22fad3127c11d298b93841a20820c1da82cc4a67fa4e8bb352cfb91669f0abdd&w=320&h=240&ei=mG1dUtW7BojMrQe0vYHIDQ&zoom=1&ved=1t:3588,r:6,s:0,i:94&iact=rc&page=1&tbnh=186&tbnw=247&start=0&ndsp=17&tx=97&ty=62

Thanks

Answer 1

Have you looked here: http://docs.opencv.org/modules/imgproc/doc/feature_detection.html?highlight=houghcircles#houghcircles

It gives the parameters of the function HoughCircles. Do you need more of an explanation of any parameters?