Fragile watermarking algorithm based on eigenvalues of matrix

被引：0

作者：

Niu, Shao-Zhang ^{[1
,2
]}

Shu, Nan-Fei ^{[1
]}

Zhu, Yan-Ling ^{[1
]}

机构：

[1] School of Computer Science, Beijing University of Posts and Telecommunications, Beijing 100876, China

[2] National Engineering Laboratory for Disaster Backup and Recovery, Beijing University of Posts and Telecommunications, Beijing 100876, China

来源：

Beijing Gongye Daxue Xuebao / Journal of Beijing University of Technology | 2008年 / 34卷 / SUPPL. 2期

关键词：

Image watermarking - Copyrights - Image processing - Watermarking;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Secret information (watermarking) is used in multimedia digital works to protect copyright, avoid falsifying and forging, and communicate secretly. There are two kinds of watermarking which are called robust watermarking and fragile watermarking respectively due to their different applications. This paper mainly discusses a kind of fragile watermarking which makes use of M-matrix and the scale quantization function. Results show that after any kind of malicious attacking, the extracted watermark is a black and white dot image of uniform distribution with no information of the original watermark except for cutting, realizing the effect of fragile watermarking. The new fragile watermarking algorithm not only is extremely sensitive to malicious manipulation, but also proves to be easy to embed and extract.

引用

页码：46 / 50