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The audio watermark seems trivial to work around, unless there's more to it than they're disclosing. A low- and high-pass filter may be all it takes to block it
by btbuildem 6y ago
The audio watermark seems trivial to work around, unless there's more to it than they're disclosing. A low- and high-pass filter may be all it takes to block it.
The visual watermark is more tricky, but thanks to streaming video piracy, we have a bunch of out-of-the-box watermark removal techniques.
Interesting arms race :)
- joshka 6y agoIt would be fairly trivial to encode information in single frame swaps (both audio and video) in such a way that these swaps are imperceptible and irreversible. There are many compression artifacts that could be used similarly (e.g. does a 1 bit increase in average screen color is rarely going to be perceptible). Regarding hi/low pass, theoretically this should be fairly simple to defeat by spreading the information across multiple frames. Note: I know next to nothing about watermarking, my comment is just a purely hypothetical attack on your trivial assumption. The trivial work around has trivial work around work around... ;) <insert that scene from the big hit>