A scheme of reversible information hiding based on SMVQ

C. T. Huang, W. J. Wang, C. H. Yang, Shiuh Jeng Wang

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

In this paper, we propose two reversible information hiding schemes based on sidematch vector quantisation (SMVQ). In 2006, Chang et al. proposed a data-hiding scheme based on SMVQ coding. In order to increase both the image quality and the embedding capacity, we improve their method by embedding multiple secret bits into a block and finding out the second selected codeword from the full codebook. In addition, we propose another reversible information hiding scheme whose output is a pure VQ index table. The weighted bipartite graph is used to model our scheme and the matching approach is used to find out the best solution. Compared with Chang et al.'s scheme, we have higher visual quality in the experimental results.

Original languageEnglish
Pages (from-to)195-203
Number of pages9
JournalImaging Science Journal
Volume61
Issue number2
DOIs
StatePublished - Feb 2013

Keywords

  • Capacity
  • Reversible data hiding
  • Side-match vector quantisation

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