Fragile watermarking based on smoothness for document image

被引：0

作者：

Xi Yan-hua ^{[1
,2
]}

Zhang Min-rui ^{[1
]}

机构：

[1] Xian Univ Sci & Technol, Sch Commun & Informat Engn, Xian 710054, Peoples R China

[2] Xianyang Normal Coll, Dept Phys, Xianyang 712000, Peoples R China

来源：

2007 INTERNATIONAL WORKSHOP ON ANTI-COUNTERFEITING, SECURITY, AND IDENTIFICATION | 2007年

关键词：

fragile watermarking; document image; smoothness;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A document watermarking algorithm based on smoothness in the equal size square blocks in partitioned document image is proposed. Flippability of a pixel is determined by imposing the Flippability Criterion in a 3x3 moving window centered at the pixel. Flippable pixels are replaced with watermarking only in embeddable blocks. Different types of blocks are employed and their ability to increase the capacity is compared. Experiments show that the watermarked document image has good quality and the tampered content can be detected and localized successfully. The proposed scheme can be used for document authentication and detection of integrity.

引用

页码：249 / +

页数：3