With some knowledge on OpenCV, you can go ahead and read the manuals of OpenCV to gain more knowledge on how functions and arguments are passed. Initially, it can be somewhat difficult for you to start OpenCV using image pointers. There is an immense amount of help available at http://www.opencv.org. While taking help from the Internet and the code available from the official website, check for the OpenCV language (platform) first. It has been observed that when C code merges with C++ code, it doesn't work even after banging your head for hours. It is advised to keep The OpenCV Reference Manual (Current Release 2.4.9.0) with you while coding OpenCV.
It would be quite a good challenge for you to develop a project that fulfils the following requirements: