摘要
基于英文字母的文字特征,提出一种用希腊字母替换以嵌入水印的新方法,并将水印编码与差错控制码绑定,实现了对英文文本水印的盲提取、检测和恢复操作,突破了现有水印方法中水印信息无法嵌入文本内容之中的难题。攻击实验数据证明水印的容量得到扩充,鲁棒性有所提高。
Based on the characteristics of English characters, this paper presents a new text-watermarking algorithm in which a watermark is embedded into text by replacing English characters with Greek characters and binding the watermark with the error control code. The integrality and recovery of watermark information can be realized easily, and the watermark can be detected blindly. Therefore, this method breaks through the difficulty that watermarking information can＇t be embedded truly into the content of text. Experiments show that the marking capacity has been enlarged and the robustness has been increased.
出处
《计算机工程》
EI
CAS
CSCD
北大核心
2005年第22期29-31,共3页
Computer Engineering
基金
国家自然科学基金资助项目(60373062)
教育部科研重点基金资助项目(03092)
湖南省杰出中青年基金资助项目(02JJYB012)
关键词
文本水印
希腊字母
差错控制
绑定
盲检
水印容量
Text watermarking
Greek character
Error control
Bind
Blind-detection
Watermarking capacity
