OpenCV Parameters need to be self-adjusting

[svjharris]

To write more robust code that will work with many photos the parameters for opencv methods such as the HoughTransform need to be self-adjusting and not hard-coded. We'll have to:

1. Define the bounds of the params (the extreme values on either end)
2. Define conditions under which our detection is done or "good"
   • For example finding one pupil circle that's vaguely centered and in an area of high red density
3. Perform a binary or some sort of search on the space of parameters we could try
4. When a specific parameter set matches the conditions we've defined we're good.