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Optimum Detection of Multiplicative-Multibit Watermarking for Fingerprint Images

  • Khalil Zebbiche
  • Fouad Khelifi
  • Ahmed Bouridane
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4642)

Abstract

Watermarking is an attractive technique which can be used to ensure the security and the integrity of fingerprint images. This paper addresses the problem of optimum detection of multibit, multiplicative watermarks embedded within Generalized Gaussian distribution features in Discrete Wavelet Transform of fingerprint images. The structure of the proposed detector has been derived using the maximum-likelihood approach and the Neyman-Pearson criterion. The parameters of the Generalized Gaussian distribution are directly estimated from the watermarked image, which makes the detector more suitable for real applications. The performance of the detector is tested by taking into account the different quality of fingerprint images and different attacks. The results obtained are very attractive and the watermark can be detected with low detection error. Also, the results reveal that the proposed detector is more suitable for fingerprint images with good visual quality.

Keywords

Fingerprint images multibit watermarking multiplicative rule maximum-likelihood 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Khalil Zebbiche
    • 1
  • Fouad Khelifi
    • 1
  • Ahmed Bouridane
    • 1
  1. 1.School of Electronics, Electrical Engineering and Computer Science, Queen’s University Belfast, BT7 1NN BelfastUK

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