Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Early kill removal graphics processing system and method
Non-aqueous solution process for the preparation of cross-linked polymers
Analogue-to-digital converter
Semiconductor process
Disk drive increasing capacity by adjusting a servo gate during write operations
Voltage detector having voltage detection printed board
Monitoring of undesirable fluid ingress into subsea control modules
  Randomly Featured Patents
3-thioheteroaryl cephalosporin compounds, compositions and methods of use
System and method for concatenating discontiguous memory pages
Apparatus, system, and method for an in-server storage area network
Transparent system interrupts with integrated extended memory addressing
Apparatus for accessing data stored on an optical disc
Sanitary beehive honeycomb suspending frame
Apparatus and methods for mapping retinal function
Water storage unit with dual bladders
Method of fabricating semiconductor memory device
Method, apparatus, and system for using an optical link with electrical link receiver detection