Effectiveness of exhaustive search and template matching against watermark desynchronization

被引：64

作者：

Barni, M ^{[1
]}

机构：

[1] Univ Siena, Dept Informat Engn, I-53100 Siena, Italy

来源：

IEEE SIGNAL PROCESSING LETTERS | 2005年 / 12卷 / 02期

关键词：

exhaustive watermark search; geometric attacks; template matching; watermark synchronization;

D O I：

10.1109/LSP.2004.840872

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：

By focusing on a simple example, we investigate the effectiveness of exhaustive watermark detection and resynchronization through template matching against watermark desynchronization. We find that if the size of the search space does not increase exponentially, both methods provide asymptotically good results. We also show that the exhaustive search approach outperforms template matching from the point of view of reliable detection.

引用

页码：158 / 161

页数：4