Image Watermarking Algorithm Based on the Code Division Multiple Access Technique

  • Fan Zhang
  • Guosheng Yang
  • Xianxing Liu
  • Xinhong Zhang
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4252)


A multiple watermarking algorithm based on the Code Division Multiple Access (CDMA) spread spectrum technique is presented. Multiple copyright identifiers are convolutional encoded and block interleaved, and the orthogonal Gold sequences are used to spread spectrum of the copyright messages. The CDMA encoded copyright messages are embedded into the wavelet sub-bands. As a blind watermarking algorithm, the copyright identifiers are extracted without the original image. The experimental results show that the proposed algorithm improves the detection BER, and the multiple copyright identifiers have preferable robustness and invisibility.


Discrete Wavelet Transform Watermark Scheme Convolutional Code JPEG Compression Watermark Algorithm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Fan Zhang
    • 1
  • Guosheng Yang
    • 1
  • Xianxing Liu
    • 1
  • Xinhong Zhang
    • 2
  1. 1.Institute of Advanced Control and Intelligent Information ProcessingHenan UniversityKaifengP.R. China
  2. 2.Department of Computer CenterHenan UniversityKaifengP.R. China

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