Color adaptive watermarking
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 8, 2003
Issued Date -
N/A
app pub date -
Apr 19, 2000
filing date -
Feb 14, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A color mapping process enhances a watermark by computing a change in colors that is less visible for a given watermark strength. The mapping process provides smooth transitions from one color region to another, and may be implemented efficiently with a 3D look up table. A user interface scheme enables the user to control encoding of the watermark in desired color regions.
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Cited Art Landscape
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