Distinguish different billiards images.

This project's main purpose is to investgate how to distinguish different billiards pictures, the input pictures should have fixed Resolution, and billsards should be in fixed position with fix size. These preconditions make much easy to detect the billiards in the image, and it's easy to fulfill. For billiars ball is high reflective, please try your best to reduce reflection, and all pictures should be take under same illumination.