Testing out the new camera module in pygame, having fun with combination of projector and cheap-o webcam. The red line on the bottom is the mean pixel color value difference over the whole visual field, bottom is 0, top the maximum of 255. The time goes from left to right, while the right margin of the projection is NOW. Dark shadows are the actual pixel brightness differences projected to black and white, black corresponding to absolute difference value of respective pixel.

Code here: lhilbert.wordpress.com/2012/12/23/interactive-motion-detection-setup/

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