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Colour image steganography method based on sparse representation.

Soodeh AhaniShahrokh Ghaemmaghami
Published in: IET Image Process. (2015)
Keyphrases
  • sparse representation
  • negative matrix factorization
  • piecewise smooth
  • face recognition
  • similarity measure
  • input data
  • sparse coding
  • dictionary learning
  • compressive sensing
  • colour images
  • regularized least squares