Hi all, There has been lots of research around using the discrete cosine transform (DCT) value of blocks [1] for embedding information.
I'm wondering if there's any source code out there for these slightly more complex and powerful watermarking filters? Cheers, Liam Edwards-Playne. [1] http://nanocdac.com/wp-content/uploads/2015/11/NE-44.Tampering-Detection-in-Compressed-Digital.pdf
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