基于小波变换和余弦变换的盲水印技术  

Blind Watermarking Technology Based on Wavelet Transform and Cosine Transform

作　　者：阳树洪[1] 王江涛[1] 

机构地区：[1]兰州交通大学机电技术研究所,甘肃兰州730070

出　　处：《兰州交通大学学报》2005年第3期88-90,101,共4页Journal of Lanzhou Jiaotong University

摘　　要：详细介绍了基于一种新型的基于小波变换和余弦变换的盲水印数字水印技术,这种方法的一个显著的优点就是采用水印嵌入算法,提取水印的时候不需要原图象,能够很好的满足了数字水印系统的透明性和鲁棒性,能够经受住加入噪声、中值滤波、压缩等方式的攻击,并且还能够经受住高通滤波和低通滤波.A new type of blind watermarking technology,which has the advantage of adopting watermarking embedding algorithm is introduced based on wavelet transform and cosine transform,so the original image isn't necessary when picking up watermarking and the transparency and robustness of digital watermarking system is well fulfilled,the attack in the forms of noise,median filtering and compress can be withstood,and high pass filtering and low pass filtering can also be endured.

关 键 词：盲水印 小波变换 余弦变换 水印嵌入算法 

分 类 号：TP3111[自动化与计算机技术—计算机软件与理论]