Robust watermarking for digital objects
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United States of America Patent
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Oct 8, 2002
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N/A
app pub date -
Sep 30, 1998
filing date -
Sep 30, 1998
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Abstract
Method of embedding a watermark in a digital object. The watermark is used to perform argument modulation of a transform of the object. Watermark data is used in the argument of the transform to effectively shift around values in the transform domain.
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