An Improved Reversible Difference Expansion Watermarking Algorithm

被引：0

作者：

Vasiliy, Sachnev ^{[1
]}

Kim, Hyoung-Joong ^{[1
]}

Xiang, Shijun ^{[3
]}

Nam, Jeho ^{[2
]}

机构：

[1] Korea Univ, Grad Sch Informat Secur & Management, CIST, Seoul 136701, South Korea

[2] ETRI, Daejeon 305 700, South Korea

[3] Jinan Univ, Coll Informat Sci & Technol, Guangzhou 510632, Guangdong, Peoples R China

来源：

DIGITAL WATERMARKING, PROCEEDINGS | 2008年 / 5041卷

关键词：

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we propose an improved reversible watermarking algorithm by using the simplified location map. The proposed embedding method is based on the Alattar integer transform [3]. Here, we extend the case of using four pixels. Proposed simplified location map we propose just covers those necessary quads, the improved watermarking algorithm has a larger embedding capacity in comparison with the work of Alattar[3]. Simulation testing shows that our embedding strategy has achieved a better performance for all tested images.

引用

页码：254 / +

页数：3

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