Method and apparatus for embedding auxiliary information within original data
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United States of America Patent
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May 12, 2009
Grant Date -
Feb 14, 2008
app pub date -
Mar 27, 2007
filing date -
Sep 25, 1998
priority date (Note) -
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Abstract
This patent application is generally related to watermarking and steganography. In one implementation, a method of embedding auxiliary information within original data is provided. The original data is divided into a series of groups, with each group in the series of groups associated with a value. The method includes: investigating a first group to determine a presence of a local masking opportunity; and if there exists a presence of a local masking opportunity with the first group, embedding data by setting a value of one or more groups in a neighborhood of the first group, including the first group, in accordance with a value associated with at least a portion of the auxiliary data. Other implementations and embodiments are provided as well.
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