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Watermarking of Data Invariant to Distortion

  • US 20100254566A1
  • Filed: 10/06/2009
  • Published: 10/07/2010
  • Est. Priority Date: 12/13/2001
  • Status: Active Grant
First Claim
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1. A method for watermarking a data set comprising:

  • using a programmed computer to perform the acts of;

    transforming the data set to a first domain in which data values are more invariant to distortion;

    transforming the data set from the first domain to a second domain that includes a set of expandable values;

    modifying expandable values to include auxiliary data.

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