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Wuhan University Journal of Natural Sciences

, Volume 8, Issue 3, pp 842–846 | Cite as

Research on digital watermark using pre-processing technology

  • Ru Guo-bao
  • Niu Hui-fang
  • Yang Rui
  • Sun Hong
  • Shi Hong-ling
  • Huang Tian-xi
Article
  • 28 Downloads

Abstract

We have realized a watermark embedding system based on audio perceptual masking and brought forward a watermark detection system using pre-processing technology. We can detect watermark from watermarked audio without original audio by using this method. The results have indicated that this embedding and detecting method is robust, on the premise of not affecting the hearing quality, it can resist those attacks such as MPEG compressing, filtering and adding white noise.

Key words

digital watermark audio perceptual masking DFT (Discrete Fourier Transform) RLS adaptive filter 

CLC number

TP 751.1 

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Copyright information

© Springer 2003

Authors and Affiliations

  • Ru Guo-bao
    • 1
  • Niu Hui-fang
    • 2
  • Yang Rui
    • 1
  • Sun Hong
    • 1
  • Shi Hong-ling
    • 1
  • Huang Tian-xi
    • 1
  1. 1.School of Electronic InformationWuhan UniversityWuhan, HubeiChina
  2. 2.Mathematics DepartmentLuoyang Teacher CollegeLuoyang, HenanChina

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