基于一维正态云模型的半脆弱文本水印

New semi-fragile text watermarking algorithm based on one-dimensional normal cloud model

根据云模型和人眼视觉系统的特点,给出了一种利用一维正态云模型和文本字体颜色变化的半脆弱性水印方案。通过正向云发生器生成云滴,所有云滴组合产生水印信息,修改文字的颜色值嵌入水印。在提取水印信息时,通过提取字体颜色特征,重构云图来验证。实验结果表明,本算法是一种半脆弱的文本水印。

Taking advantages of the property of the cloud model and human visual system, a new semi-fragile Text watermarking algorithm is proposed. It＇ s based on the one-dimensional normal cloud model and the font color. The forward cloud generator creates cloud droplets, all of the cloud droplets integrate to be the watermarking. Then, the watermarking, with the modification of the color of character font in the text, can be embedded into the document. The authenticity of a word document is verified by distilling the characteristics of font color and reconstruct the map of cloud. The experimental results show that the watermarking using this algorithm is a semifragile watermarking.