Motion Detector Threshold

[sumdog]

Facebook comment:

Steve Fxxxx:
Spent ages looking for a simple program like this, 
everything else is a lot more bloated. My only request 
would be a sensitivity setting. Can get a little annoying 
having the window popping up every time someone 
behind me shuffles in their seat. Other than that, very useful!

There is a threshold used for each filter type in the AForge libraries that's currently hard coded (motion/IMotionDetector*). This should be integrated into the RearViewMirror/Options/OptionsForm