ETRI Journal

  • 제27권5호
  • /
  • Pages.608-616
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  • 2005
  • /
  • 1225-6463(pISSN)
  • /
  • 2233-7326(eISSN)
한국전자통신연구원 (Electronics and Telecommunications Research Institute)
권호 표지

Audio Watermarking through Modification of Tonal Maskers

  • Lee, Hee-Suk (Department of Computer Engineering, Changwon National University) ;
  • Lee, Woo-Sun (Department of Computer Engineering, Changwon National University)
  • 투고 : 2005.02.23
  • 발행 : 2005.10.31
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초록

Watermarking has become a technology of choice for a broad range of multimedia copyright protection applications. This paper proposes an audio watermarking scheme that uses the modified tonal masker as an embedding carrier for imperceptible and robust audio watermarking. The method of embedding is to select one of the tonal maskers using a secret key, and to then modify the frequency signals that consist of the tonal masker without changing the sound pressure level. The modified tonal masker can be found using the same secret key without the original sound, and the embedded information can be extracted. The results show that the frequency signals are stable enough to keep embedded watermarks against various common signal processing types, while at the same time the proposed scheme has a robust performance.

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참고문헌

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