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by lkxijlewlf
1456 days ago
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Laser printers (color ones) are (were?) required to have some sort of built in imperfection because they were too good and could be used for counterfeiting. I wouldn't be surprised if this eventually is a requirement for cameras, you know, just because law enforcement wants it. |
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There's also a pattern of circles on currency that color copiers and Photoshop will read and then refuse to work on: https://en.wikipedia.org/wiki/EURion_constellation