Information theory applications in error bit rate analysis of digital image watermarking
Computers and Electrical Engineering
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In this correspondence, a new digital watermarking scenario is studied, where watermarks and covertexts are correlated with each other. A necessary and sufficient condition is derived under which a watermark is first embedded, and can later be recovered with high probability at the output of a public watermark decoder after the watermarked signal is disturbed by a fixed memoryless attack channel. Interestingly, the condition also implies that the Shannon separation theorem does not hold in this scenario.