Idea: remember the EURion constellation? http://en.wikipedia.org/wiki/EURion_constellation http://en.wikipedia.org/wiki/EURion_constellation It's a pattern of

Idea: remember the EURion constellation? http://en.wikipedia.org/wiki/EURion_constellation http://en.wikipedia.org/wiki/EURion_constellation It's a pattern of circles that's printed on money, and when printers detect it in a file they will refuse to print that file. I wonder what would happen if we similarly embedded this pattern in landscapes. Would it prevent printing aereal photo's?