Content-adaptive robust image watermarking with posterior HMM-based detector

Chuntao Wang, Jiangqun Ni, Rongyue Zhang, Goo Rak Kwon, Sung Jea Ko

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

SUMMARY Robustness and invisibility are two contrary constraints for robust invisible watermarking. Instead of the conventional strategy with human visual system (HVS) model, this paper presents a content-adaptive approach to further optimize the constraint between them. To reach this target, the entropy-based and integrated HVS (IHVS) based measures are constructed so as to adaptively choose the suitable components for watermark insertion and detection. Such a kind of scheme potentially gives rise to synchronization problem between the encoder and decoder under the framework of blind watermarking, which is then solved by incorporating the repeat-accumulate (RA) code with erasure and error correction. Moreover, a new hidden Markov model (HMM) based detector in wavelet domain is introduced to reduce the computation complexity and is further developed into a posterior one to avoid the transmission of HMM parameters with only a little sacrifice of detection performance. Experimental results show that the proposed algorithm can obtain considerable improvement in robustness performance with the same distortion as the traditional one.

Original languageEnglish
Pages (from-to)1953-1960
Number of pages8
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
VolumeE91-A
Issue number8
DOIs
Publication statusPublished - 2008 Aug

Keywords

  • 11MM
  • Content-adaptive
  • Image warermarking
  • Robustness
  • Wavelet

ASJC Scopus subject areas

  • Signal Processing
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering
  • Applied Mathematics

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