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Or, to avoid detection by cameras entirely, lemon juice: http://opinionator.blogs.nytimes.com/2010/06/20/the-anosogno...

"But I wore the juice!"



Cameras can't see the difference between visible light and infrared, so one thing you could do would be to put a bunch of lnfrared leds on your face - humans can't see it, but to the cameras your head looks like a light bulb.


I always wanted to do this for my license plate.




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