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Minimizing Pixel Expansion in Visual Cryptographic Scheme for General Access Structures.

Shyong Jian ShyuMing Chiang Chen
Published in: IEEE Trans. Circuits Syst. Video Technol. (2015)
Keyphrases
  • special case
  • closely related
  • intensity values
  • low level
  • access control
  • reversible watermarking
  • visual features
  • block wise