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Per-separation clustered-dot color halftone watermarks: separation estimation based on spatial frequency content.

Basak OztanGaurav Sharma
Published in: J. Electronic Imaging (2010)
Keyphrases
  • spatial frequency
  • texture segmentation
  • digital images
  • color information
  • gray scale
  • pattern recognition
  • color images
  • error diffusion
  • data hiding
  • halftone images
  • image texture
  • direct binary search