title: How to detect motion on camera to move mouse
body: <p>We are doing experiment with our webcam. We want to move mouse pointer with camera by moving an easily identifieable object in front of camera. For example move an led in dark room in front of camera and it will detect the motion.</p>
  
  <p>How do we do that? Program a software that capture each image, process it, find the position of light and set mouse accordingly?
  Is there any ready made library (c#) for doing such thing.</p>