Attacking Phase Shift Keying Based Watermarking

  • Authors:

  • Jeng-Shyang Pan;Chuang Lin

  • Affiliations:

  • The authors are with the Department of Automatic Test and Control, Harbin Institute of Technology, Harbin, China. E-mail: jspan@cc.kuas.edu.tw, E-mail: linchuang_78@sina.com,;The authors are with the Department of Automatic Test and Control, Harbin Institute of Technology, Harbin, China. E-mail: jspan@cc.kuas.edu.tw, E-mail: linchuang_78@sina.com,

  • Venue:
  • IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
  • Year:
  • 2007

Quantified Score

Hi-index 0.00

Visualization

Abstract

The letter describes a phase perturbation attack to the Discrete Fourier Transform (DFT) and Phase Shift Keying (PSK) based watermarking scheme which is proposed in [3]. In that paper the watermark information is embedded in the phase of the DFT coefficients. But this kind of PSK based watermarking scheme is very vulnerable to the phase perturbation attack, when some noise is added on the phase of the DFT coefficients, the watermark can't be correctly extracted anymore, while the quality degradation of the attacked watermarked image is visually acceptable.