An improved subspace based asymmetric watermarking scheme for copy protection

Dooseop Choi, Hyuk Choi, Joon Hwan Choi, Taejeong Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Asymmetric watermarking schemes based on subspace have been shown to be secure from projection attacks. The benefit comes from that their detection keys have host signal components which perceptibly degrade the host signals when the watermarks are made undetectable. These schemes, however, suffer high false detection probability because of the very host signal components. In this paper, we propose an improved asymmetric watermarking scheme for copy protection of digital images by determining the amount of the host signal components to be contained in the watermark detection key for both security from projection attacks and low false detection probability. The simulation results show that the proposed algorithm effectively lowers false detection probability while maintaining security against projection attacks.

Original languageEnglish
Title of host publicationProceedings of the 7th IASTED International Conference on Signal Processing, Pattern Recognition and Applications, SPPRA 2010
Pages150-155
Number of pages6
StatePublished - 2010
Event7th IASTED International Conference on Signal Processing, Pattern Recognition and Applications, SPPRA 2010 - Innsbruck, Austria
Duration: 17 Feb 201019 Feb 2010

Publication series

NameProceedings of the 7th IASTED International Conference on Signal Processing, Pattern Recognition and Applications, SPPRA 2010

Conference

Conference7th IASTED International Conference on Signal Processing, Pattern Recognition and Applications, SPPRA 2010
Country/TerritoryAustria
CityInnsbruck
Period17/02/1019/02/10

Keywords

  • Asymmetric watermarking
  • False detection probability
  • Projection attack
  • Watermark detection

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