I wrote this one in flash as3.0, you can use it on live video and tweak the settings to work on really low end cpu if you want to port the scripts its all there: - YouTube
I also included a version that can communicate to the arduino directly back and forth with a socket to serial pipe so you can get some hardware controls.
I hope my scripts help your project, I really like yours because those sensors seem really good they look like disco balls, nice project. hope mine helps and show us more updates when it gets better.