Integer Wavelet Transform Based Watermarking System for PCM Signals

  • Mario González-Lee
  • Luis J. Morales-Mendoza
  • Rene F. Vázquez-Bautista
  • Celia Calderon-Ramon
  • Héctor Pérez-Meana
  • Mariko Nakano-Miyatake
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7914)

Abstract

In this paper, a watermarking system based on the integer wavelet transform is proposed. A set of different wavelets was chosen for this propose so their performance as watermark transmission channel can be analyzed. The watermark is embedded in the second decomposition level of the wavelet transform of a PCM signal in a block wise approach, the coefficients of the wavelet transform are assumed to be accurately modeled as a Laplacian channel. A set of attacks were performed in order to test system’s robustness, we found that this approach is robust against several attacks such as additive white noise, low pass filtering, cropping, among other attacks; the best suited wavelet class for developing watermarking systems was identified too.

Keywords

Watermarking Integer wavelet transform Optimal detector Laplacian channel 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Mario González-Lee
    • 1
  • Luis J. Morales-Mendoza
    • 1
  • Rene F. Vázquez-Bautista
    • 1
  • Celia Calderon-Ramon
    • 1
  • Héctor Pérez-Meana
    • 2
  • Mariko Nakano-Miyatake
    • 2
  1. 1.Facultad de Ingenieria en Electronica y ComunicacionesUniversidad VeracruzanaPoza RicaMexico
  2. 2.Seccion de Estudios de Posgrado e InvestigacionInstituto Politecnico NacionalMexico D.F.Mexico

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