Watermarks with detection in cameras and scanners, be it the simple EURion constellation[1], ContentArmor[2] or the watermarking techniques developed by Denuvo, these things exist.
Some directly prevent you from photographing the content or filming it, others tell the camera to add identifying information steganographically. Even others are only used for ContentID. All of them work even if the material is going through analog copying.
Also [1], which relies on watermarking audio of content, which then can be detected by hardware players and the playback can be stopped if it discovers that e.g. you play a BluRay rip from USB stick. It survives encoding with different codecs. I'm not sure if it has been cracked yet or not.
Appears to be 'cracked' as far as is possible- i.e, can remove the watermark itself, but not possible to undo the degradation to the original signal that the watermarking introduces.
Watermarks with detection in cameras and scanners, be it the simple EURion constellation[1], ContentArmor[2] or the watermarking techniques developed by Denuvo, these things exist.
Some directly prevent you from photographing the content or filming it, others tell the camera to add identifying information steganographically. Even others are only used for ContentID. All of them work even if the material is going through analog copying.
[1] https://en.wikipedia.org/wiki/EURion_constellation [2] http://contentarmor.net/