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
Image heating apparatus
Proximity sensor arrangement in a mobile device
Decentralized processing network
Headset electronics
Temporal document trainer and method
Scanning projection apparatus with tangential compensation
Liquid crystal display device with a control mechanism for eliminating images
  Randomly Featured Patents
Voltage generator for telecommunication amplifier
Method and apparatus for spondylolisthesis reduction
Transmitter and method for transmitting information packets with incremental redundancy
System and method for tracking a global shape of an object in motion
Apparatus for determining the phase difference between the rolling oscillation of a ship and a liquid contained in a stabilizing tank
Module, nozzle and method for dispensing controlled patterns of liquid material
Composite articles made by process for joining bronze part and silicon carbide ceramic part
Sleeve valve actuator means
Current collector
Variety of begonia plant named `BBVeronica`