Chaotic watermarking algorithm based on space-time-coded matrix and linear decimation

Hongmin Deng, Tao Li, Qionghua Wang, Hongbin Li

Research output: Contribution to journalArticlepeer-review

Abstract

A novel digital watermarking algorithm based on space time coding (STC) and linear decimation (LD) techniques in communication is proposed in the wavelet domain. The watermark after STC and LD is embedded in the wavelet coefficients of the host image through chaotic modification. Simulation results show that it is not only robust against some attacks such as local cropping in varying degrees, but also has high security. This demonstrates the efficiency of our watermarking algorithm.

Original languageEnglish
Pages (from-to)2489-2494
Number of pages6
JournalJournal of Information and Computational Science
Volume5
Issue number6
StatePublished - Dec 2008

Keywords

  • Chaotic digital watermark
  • Linear decimation (LD)
  • Space time coding (STC)
  • Wavelet transform

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