A secure watermarking scheme for copyright protection

被引:1
|
作者
Zhang, JS [1 ]
Tian, L [1 ]
Tai, HM [1 ]
Wang, CJ [1 ]
机构
[1] SW Jiaotong Univ, Sichuan Province Key Lab Signal & Informat Proc, Chengdu 610031, Peoples R China
关键词
watermarking; copyright protection; chaotic map; encryption; singular value decomposition;
D O I
10.1117/12.557445
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
This paper presents a chaotic watermarking scheme for copyright protection. The proposed method employs the singular-value-decomposition (SVD) based watermarking scheme and the encrypted watermark based on the chaotic maps. The rightful owner possesses two secret keys: one related to the owner, another to the original image. Chaotic maps are used with the keys for watermark encryption so as to enhance the anti-counterfeit and noninvertibility properties of the watermark. Examples are illustrated to demonstrate the robustness and security of the proposed watermarking scheme.
引用
收藏
页码:867 / 873
页数:7
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