print contrast signal(PCS)

The watermarking mainly selected the method which gathered based on the characteristic to carry on the watermark signal inserting,its key was carries on the characteristic analysis to the vector graph,and discovered the good model expression way.

二维矢量图数字水印主要采用基于特征集合的方式进行水印信号的嵌入,其关键是对矢量图进行特征分析,并找出好的模型表达方式。

Various digital watermark signals involved in digital watermarking algorithms are discussed and the requisite characteristics of a watermark signal are summarized.

本文针对当前数字水印算法中提出的各种数字水印信号进行分析 ,综合了数字水印信号应满足的特性 ,并且提出了基于混沌序列的数字水印信号算法 。