Method and apparatus for providing a noise estimation for automatic selection of dither patterns in low frequency watermarks
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United States of America Patent
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Issued Date -
Feb 17, 2005
app pub date -
Jun 21, 2004
filing date -
Jun 19, 2003
priority date (Note) -
Abandoned
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Abstract
A method and apparatus for providing noise estimation for dithering pattern selection is disclosed. One or more candidate regions are identified from a source. A noise estimation is provided. A dithering pattern is introduced for a selected candidate region based on a magnitude of the noise estimation
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