一种新的基于数字水印的防伪印刷技术  

A new technique of preventing from falsifying presswork based on watermark

作　　者：周亮[1] 李炳法[1] 单云凡[1] 邓科[1] 蔡毅[1] 

机构地区：[1]四川大学计算机学院,成都610064

出　　处：《信息技术》2005年第9期31-34,共4页Information Technology

摘　　要：提出了一种新的基于空间域变换的图像数字水印算法的防伪印刷技术。该算法首先对二值水印图像进行置乱变换,再对数字图像信号进行分段处理,最后依据人类视觉系统进行量化完成对水印信息的嵌入。This paper proposed a new kind of printing technique of preventing from falsifying presswork based on watermark, This algorithm first transforms two _ value image of watermark randomly, then deals with digital image signal partly, finally carries on the quantification based on the human vision system to complete watermark information imbedding.

关 键 词：数字水印 空间域变换 人类视觉系统 防伪印刷 

分 类 号：TN911.73[电子电信—通信与信息系统]