Android image processing and pattern detection

I'm trying to develop an android app that is capable of detecting led patterns on a 开发者_如何学编程screen in order to transmit data.

The screen that the phone will be looking at is a simple 5x19 array of red LEDs. I would like to be able to display numbers, most likely in binary and have the app detect the lit LEDs and determine the number being displayed and their pattern. This would probably require fiducial s similar to those used by QR codes.

Does anyone know what I will need to perform this type of image processing? Are there any good libraries?

Thanks, Thomas

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OpenCV has been ported to Android. Check it out