基于文本重要内容的鲁棒水印算法

提出一种基于文本重要内容的鲁棒水印算法, 对文本的特征进行分析, 确定文本的重要内容. 根据水印序列和同义词替换评价模型, 将水印不可感知地嵌入到文本的重要内容中, 提高水印的鲁棒性. 投票原则的使用又进一步提高水印的鲁棒性并降低了误检率. 理论和实验分析表明, 采用文中算法嵌入的水印具有较好的鲁棒性、安全性和不可见性.

Robust Text Watermarking Based on Significant Components

A robust text-watermarking scheme based on significant components is presented. The text significant components are acquired by analyzing text feature. According to watermarking sequence and the evaluation model of synonymy substitution, the watermark is imperceptibly embedded into the significant components of the text, which improves the robustness of watermarking. Furthermore, majority voting is used to improve the robustness of watermarking and reduce the probability of false positives. Theoretical analysis and experimental results have indicated that the proposed scheme can improve the robustness, security, and invisibility of watermarking.