Journal of the Institute of Electronics Engineers of Korea SP (대한전자공학회논문지SP)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A robust watermarking method using the correlation of the sinusoidal pattern

정현파 패턴의 상관관계를 이용한 강인한 워터마킹

  • Kim, Sang-Bum (Department of Electronic Engineering, Dongguk University) ;
  • Won, Chee-Sun (Department of Electronic Engineering, Dongguk University)
  • Published : 2008.01.25
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Abstract

In this paper, we propose a DCT coefficient domain watermarking scheme, which makes use of the sinusoidal patterns created by the watermark embedding. The embedded watermark can be detected in the spatial domain by computing the correlation. Also, the proposed algorithm can detect the spatial synchronization without additional sync bit embedding. Experimental results show that the proposed algorithm is robust to various StirMark attacks.

본 논문에서는 특정 DCT계수를 조작하였을 때 공간영역에서 생성되는 정현파 패턴을 워터마크로 활률한다. 즉, 특정 DCT 계수를 워터마크 비트에 따라 변경하여 결과적으로 정현파 패턴이 삽입되도록 하고, 삽입된 워터마크는 공간영역에서 상관관계를 이용하여 검출할 수 있다. 제안된 알고리즘은 추가적인 싱크 비트 삽입 없이도 영상의 공간싱크의 변화를 어느 정도 감지 할 수 있으며 다양한 StirMark공격에 강인함을 실험결과를 통해 확인하였다.

Keywords

References

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