Optimum Decoding of Non-additive Full Frame DFT Watermarks

  • Alessia De Rosa
  • Mauro Barni
  • Franco Bartolini
  • Vito Cappellini
  • Alessandro Piva
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1768)

Abstract

The problem of optimum watermark recovery in a non additive, non Gaussian framework is addressed. Watermark casting is carried out on the frequency domain according to an additive-multiplicative rule. The structure of the optimum decoder is derived based on statistical decision theory. The Neyman-Pearson criterion is used to minimize the probability of missing the watermark for a given false detection rate. Experimental results highlights the superiority of the novel detector scheme with respect to conventional correlation-based decoding.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Alessia De Rosa
    • 1
  • Mauro Barni
    • 2
  • Franco Bartolini
    • 1
  • Vito Cappellini
    • 1
  • Alessandro Piva
    • 1
  1. 1.Department of Electronic EngineeringUniversity of FlorenceFlorenceItaly
  2. 2.Department of Information EngineeringUniversity of SienaSienaItaly

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