摘要
提出一种基于最小二乘法的数字水印方法。该方法通过对线性方程组数值求解的过程实现对数字水印的嵌入和提取,并通过纠错码提高数字水印对攻击的抵抗力。实验数据表明该方法对于多种对数字水印的攻击有相当强的抵抗能力,是一种有较好的鲁棒性的数字水印方法。
We propose a new algorithms-watermarking ba se d on the Least Squares Method in this paper.The algorithms can be achieved by simulating the solution of linear equations,which transforms watermark embeddi ng and extraction to solve linear equations.By using error-correcting codes, we can increase the robustness of the watermark.It is supported by experiment results that the algorithms is robust to many kinds of attacks.
出处
《计算机工程与应用》
CSCD
北大核心
2003年第33期89-90,102,共3页
Computer Engineering and Applications
关键词
数字水印
最小二乘法
纠错码
Wat ermarking,Least Squares Method,Error-correcting Code
