Perceptual modeling of media signals for data hiding
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United States of America Patent
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Jul 3, 2012
Grant Date -
Jun 23, 2011
app pub date -
Oct 26, 2010
filing date -
Jun 19, 2000
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Abstract
The present disclosure relates generally to embedding auxiliary data and data hiding. One claim recites a method including: receiving data representing a media signal; using a programmed electronic processor, calculating perceptibility characteristics of the media signal, in which the perceptibility characteristics include contrast; using a programmed electronic processor, calculating a non-linear contrast to gain mapping using the perceptibility characteristics; using a programmed electronic processor, embedding an auxiliary signal in the media signal with reference to the non-linear contrast to gain mapping. Other claims and combinations are also provided.
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