A fractal watermarking scheme for images in the DCT domain

被引：2
|
作者：
Yang, SG [1 ]
Li, CX [1 ]
Sun, SH [1 ]
Xu, YQ [1 ]
Dong, JX [1 ]
机构：
[1] Harbin Inst Technol, Sch Elect Engn & Automat, Harbin 150001, Peoples R China
来源：
ICMIT 2005: INFORMATION SYSTEMS AND SIGNAL PROCESSING | 2005年 / 6041卷
关键词：
watermarking; fractal theory; watermarking embedding; watermarking extracting;
D O I：
10.1117/12.664331
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The purpose of this paper is to apply the fractal technique to digital image watermarking. A fractal watermarking scheme makes use of an affine transformation, resulting in self-similarity of the image. Before the water-marking was embedded, the image was divided into range blocks and a domain block pool in the DCT domain. An affine transformation was used to search the embedded blocks, and then embed the watermarking into them by the JND model of the Human visual system. However, watermark extracting is an inverse process. Preliminary experiments show the validity and the robustness of the proposed scheme.
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收藏
页数：6
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