小波变换结合纠错编码的半透明数字水印

该文结合实际应用需要提出了半透明数字水印的概念．并研究了带参数的双正交整数小波的构造．结合带参数的整数小波变换与纠错编码设计了一种半透明数字水印．带参数整数小波的使用，提高了水印的安全性．根据小波域量化噪声自适应地确定嵌入强度，并结合纠错编码．提高了抗攻击能力．实验表明该算法有较强的抗JPEG压缩和图像处理的能力．

Translucent Digital Watermark Base on Wavelets and Error-Correct Code

This paper advances a concept of Translucent Digital Watermark based on practical application, and presents a technique to construct the bi-orthogonal integer wavelets with parameter. It was combined with integer wavelets with parameter and error-correct code to design a translucent digital watermark. Integer wavelets with parameter increase security. The strength of the embedded watermark is image-adaptive according to the wavelets quantization noise, and combined with the error-correct code, it improved the characteristic to anti-attack. The simulation results show its effectivity in resisting compression of JPEG and image processing.