title: golf ball tracking in Python/Opencv with different color balls
body: <p>Just looking for some suggestions on how to approach the problem of golf ball tracking with different color balls.</p>
  <p>I've explored using absdiff() to get the difference between frames to track the balls but it also picks up the player and club movement. Also, using HSV to pick up specific color balls but I want to be able to pick up most colors (white, yellow, orange, blue). Thanks.</p>