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Color image zero-watermarking based on fast quaternion generic polar complex exponential transform.

Hong-Ying YangShu-Ren QiPan-Pan NiuXiang-Yang Wang
Published in: Signal Process. Image Commun. (2020)
Keyphrases
  • color images
  • fourier transform
  • real world
  • complex systems
  • polar coordinates
  • digital images
  • color space
  • color texture
  • high level
  • color information
  • rotation invariant
  • cartesian coordinates
  • reversible watermarking