数字水印技术在印刷品防伪中的应用  

Application of Digital Watermark Technology in Forgery Detection of Printed Material

作　　者：薛磊 张逸新 刘春林 

机构地区：[1]江南大学,无锡214122

出　　处：《包装工程》2008年第2期96-97,120,共3页Packaging Engineering

摘　　要：在许多打印和出版应用中,需要在半色调图像中嵌入数据用于作品的版权保护和认证。介绍了一种新颖的半色调图像中数据隐藏的算法,该算法利用DCT域数据分类法进行数字水印信息的嵌入。实验结果显示:该算法能够抵抗打印/扫描攻击,鲁棒性较好。In many printer and publishing applications, it is desirable to embed data in halftone images for copyright and authentication purposes. A novel data hiding algorithm for halftone images was proposed. The digital watermarking was embedded by DCT data classification method. Experiments showed that this algorithm is robust for printing and scanning.

关 键 词：数字水印 半色调图像 打印/扫描 鲁棒性 

分 类 号：TS805.4[轻工技术与工程]