Secure robust high-fidelity watermarking

Details Secure robust high-fidelity watermarking Secure robust high-fidelity watermarking

2007-11-20

2007-11-20

Bali, Vikkram (Department: 2624)

Image analysis

Applications

C358S003280

Reexamination Certificate

active

10124995

ABSTRACT:
For each small image region (in space and time), a measure of perceptual transparence of each of a set of possible watermark carrier modulations is used to choose a subset of such modulations, from which a secure random number generator selects, for each image region, a single carrier, modulations of which carry the watermark data.

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