Digital watermarking based on chaotic map and reference register

Yi Ta Wu, Frank Y. Shih

Research output: Contribution to journalArticlepeer-review

55 Scopus citations


In this paper, we present a new digital watermarking technique based on chaotic map and reference register (RR). We develop a block-based chaotic map, which outperforms the traditional one by breaking local spatial similarity, to increase the amount of significant coefficients in the transformed image. A RR is then employed to locate specific coefficients of a container efficiently for watermark embedding and extraction. We demonstrate the superiority of the proposed scheme in terms of better embedding capacity and lower message error rate. Furthermore, we show the proposed algorithm works well under some image-processing distortions, such as the JPEG compression, Gaussian noise, and low-pass filter.

Original languageEnglish (US)
Pages (from-to)3753-3763
Number of pages11
JournalPattern Recognition
Issue number12
StatePublished - Dec 2007

All Science Journal Classification (ASJC) codes

  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Artificial Intelligence


  • Chaotic map
  • Data embedding
  • Digital watermarking
  • Information security


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