Loading...

Improvement to a semi-fragile watermarking scheme against a proposed counterfeiting attack

Kourkchi, H ; Sharif University of Technology | 2009

298 Viewed
  1. Type of Document: Article
  2. Publisher: 2009
  3. Abstract:
  4. One of the main properties of digital watermarking methods is their security against attacks. In this paper, a novel attack against an adaptive semi-fragile image watermarking is proposed. In this attack, watermarking key and watermark are estimated by using several watermarked images. In order to improve the watermarking scheme against the proposed attack, the entropy of image blocks is utilized. Using entropy is compatible with Human Visual System (HVS); therefore it is suitable to determine the weight of watermark in image blocks. Since entropy is a sensitive feature, it is used to improve the watermarking method performance against the proposed attack. It is shown that this modification does not affect the fidelity of the watermarked images
  5. Keywords:
  6. Counterfeiting attack ; Human visual systems ; Image blocks ; Image watermarking ; Semi-fragile ; Semi-fragile watermarking ; Sensitive features ; Watermarked images ; Watermarking schemes ; Digital watermarking ; Entropy ; Watermarking
  7. Source: 11th International Conference on Advanced Communication Technology, ICACT 2009, Phoenix Park, 15 February 2009 through 18 February 2009 ; Volume 3 , 2009 , Pages 1928-1932 ; 17389445 (ISSN); 9788955191387 (ISBN)
  8. URL: https://ieeexplore.ieee.org/document/4809453