一种基于多数字基整数的数字水印分存算法  

A WATERMARKING SHARING SCHEME BASED ON MULTIPLE-BASED NUMBER

作　　者：钱言玉[1] 吴友情[1] 

机构地区：[1]合肥师范学院公共计算机教学部,安徽合肥230061

出　　处：《计算机应用与软件》2016年第11期317-320,共4页Computer Applications and Software

摘　　要：针对一般水印算法功能单一,而现有水印分存算法中只能实现二进制水印图像分存的问题,将多数字基整数应用到数字水印分存技术中,提出一种灰度水印图像的分存方法。实验结果表明,该方法可以有效防止外部欺诈和内部欺诈,实现了在多个用户间的秘密共享,也可以应用于身份认证,且可以抵抗多种常用图像的处理攻击,具有一定的鲁棒性。Aiming at the problems that general watermarking algorithms only have single function,while existing watermark sharing algorithms can only realise binary watermark image sharing,we proposed a gray-level watermarking image sharing scheme,which applies the multiple-based number to digital watermarking sharing technology. Experimental results showed that the proposed scheme can effectively prevent external and internal frauds,and achieve the secret sharing among multiple users,it can be also applied to authentication,can resist a couple of processing attacks on common images,and has certain robustness.

关 键 词：水印分存 多数字基整数 灰度水印 秘密共享 身份认证 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]