title: Gaze Detection using OpenCV - Help me find location of eyes on the screen
body: <p>I am working on a project where I need a user's gaze (location where the user is looking at on the screen). Of course, this doesn't need to be highly accurate since I am looking to use the inbuilt webcam on a laptop. Initially I am trying to figure out how I can make this work on a Windows laptop. Later on I will move on to mobile devices - android tablets possibly.</p>
  
  <p>Most examples help in detecting the pupil quite accurately, but I couldn't find anything that actually shows the projection of the eye movement/location on the screen. I have researched a lot on OpenCV and this is what I plan to use, but I really need help figuring out the location (pixels) on screen. </p>
  
  <p>I want to use the location on screen, to fire an event. For eg. if a user gazes at a button on the screen, it would fire its event. </p>
  
  <p>Any help is highly appreciated.</p>
  
  <p>Thanks!</p>