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FEATURE-BASED WATERMARKS AND WATERMARK DETECTION STRATEGIES

7,020,303

3/28/2006 12:00:00 AM

Processes and apparatus for improving the state of the art for watermarking and data protection. The disclosure includes feature-based watermarks, auto- and cross-correlation techniques for determining scaling and rotation, transitions in time based watermarking, autocorrelation watermarks for images, and dynamic content scrambling of static files.