The camera should be over exposed to help detect only the green light. Easy to do on an axis camera. Some reference from Chief Delphi for a USBcam. [Post 1](https://www.chiefdelphi.com/forums/showthread.php?t=153547&highlight=setexposure) [Post 2](https://www.chiefdelphi.com/forums/showthread.php?t=142633&highlight=setexposure)
