PySight SprayPaint
Source<p>A fairly simple Python program that uses the <a href="http://livingcode.blogspot.com/2005/10/pysight-preview.html">PySight</a> module to detect a red laser point and draw a spray paint image on the wall via a projector. It is inspired by <a href="http://graffitiresearchlab.com/?page_id=76">Graffiti Research Lab's L.A.S.E.R. Tag</a>. To get a higher sensor resolution I had to write a small patch to <a href="http://www.skyfell.org/cocoasequencegrabber.html">CocoaSequenceGrabber</a> to do the image processing in Objective-C as Python was too slow. <p>Hopefully I'll have time to revisit this and work on it later, but the source code is posted above for anyone interested in playing with it.</p>
