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Towards a Better Robustness-Imperceptibility Tradeoff in Digital Watermarking

  • Imran Usman
  • Asifullah Khan
  • Rafiullah Chamlawi
  • Abdul Majid
Conference paper

Abstract

Robustness and imperceptibility are two essential but contradicting properties in robust digital watermarking. This paper proposes an approach for obtaining superior robustness-imperceptibility tradeoff by considering the likely set of attacks a watermark is expected to be mounted with. The suggested approach achieves this improvement by using Genetic Programming to develop appropriate perceptual shaping functions for structuring the watermark intelligently by choosing the optimum strength of allowable alteration in watermarkable DCT features, in view of a set of conceivable attacks. The developed perceptual shaping functions, which outperform the conventional ones, are generalized with respect to the cover work and are based on the watermark application.

Keywords

Digital Watermarking Genetic Programming Bit Correct Ratio and Structural Similarity Index 

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Imran Usman
    • 1
  • Asifullah Khan
    • 1
  • Rafiullah Chamlawi
    • 1
  • Abdul Majid
    • 1
  1. 1.Department of Computer and Information SciencesPakistan Institute of Engineering and Applied SciencesNilore 45650Pakistan

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