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A Quantified Audio Watermarking Algorithm Based on DWT-DCT

  • De Li
  • Yingying Ji
  • JongWeon Kim
Part of the Communications in Computer and Information Science book series (CCIS, volume 263)

Abstract

An improved digital watermarking algorithm for audio was proposed based on DWT and DCT. Firstly, the binary watermark image which will be embedded to the audio convert signal was pre-processed; and the audio convert signal was divided evenly, the audio segments were selected from the divided audio, then by doing the DWT and DCT embedded the watermark to the low frequency coefficients of those audio segments which were selected; Finally, all of the audio segments were regrouped. The experimental results show that the proposed algorithm is more imperceptible and more robust against to the combinational attack.

Keywords

Audio Watermark DWT DCT Scrambling Quantization 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • De Li
    • 1
  • Yingying Ji
    • 1
  • JongWeon Kim
    • 2
  1. 1.Dept. of ComputerYanbian UniversityChina
  2. 2.Dept. of Copyright ProtectionSangmyung UniversityKorea

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