Resources Contact Us Home
Watermarking method with print-scan compensation

Image Number 5 for United States Patent #7657750.

A digital watermark may be applied to digital image data to produce watermarked digital image data. A transformation may be applied to the watermarked digital image data to produce transformed watermarked digital image data. The transformation may approximate the inverse of a transformation that represents distortion caused by transmission through a print-scan channel.

  Recently Added Patents
Heat retaining device
System of providing an internet web site that assists medical professionals draft a letter of medical necessity or other documentation for transmission to a third party payer on behalf of a pa
Control device of hybrid vehicle
Vehicle grille
Fused thiazole derivatives as kinase inhibitors
Pear tree named `PremP109`
Web-based system and method for video analysis
  Randomly Featured Patents
Waterway connection
Dentition cleaning device and system
Method for speech coding under background noise conditions
Methods and systems for treating patients with congestive heart failure (CHF)
2-alkenyl-3-aminothiophene derivative and process for producing thereof
Throttle control device
4,6-Dibromo-5-hydroxy-2-pyridine nitrile compounds and method of preparation
Welding torch attachment
Actuator-controlled mirror with Z-stop mechanism
Quantization process for a predictor filter for vocoder of very low bit rate