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
Using application characteristics for ad pricing
Suspended beam for use in MEMS device
Conveying mechanism and recording apparatus including the same
Frame structure for vehicle
Method for generating a signal and structure therefor
Generating recommendations of points of interest
Light-emitting diode device structure with Si.sub.xN.sub.y layer
  Randomly Featured Patents
Subtractive cancellation of harmonic noise
Method for protecting a windshield from cracks
Apparatus and method for generating (n, 3) code and (n, 4) code using simplex codes
Building wall construction
Connector having foldable plug
Method of using a surgical repair kit
Pixel structure having notch on capacitor electrode and contact opening above the notch connecting pixel electrode above passivation layer with the capacitor electrode
Water-based adhesive formulation having enhanced characteristics
Wheelbarrow having a handbrake
Resonant photodetector