Semi-Fragile Watermarking for Telltale Tamper Proofing and Authenticating

  • Ko, Han-Ho (Department of Electronics Engineering, Hongik University) ;
  • Park, Sang-Ju (Department of Electronics Engineering, Hongik University)
  • Published : 2002.07.01

Abstract

Extreme development in digital multimedia has raised anxiety in the minds of copyrighted content owners. This has resulted in the creation of several watermarking techniques. This paper, proposes a method of embedding a perceptually transparent digital signal, named semi-fragile watermark in the wavelet domain, utilizing the characteristics of the human visual system. So as to detect attacks inflicted on the content and use an algorithm to specify the character of the attack.

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