基于位平面分解技术的JPEG水印算法  

Digital watermarking algorithm based on dual-tree complex wavelet transform

作　　者：兰红星[1] 陈松乔[1] 赵金凤[2] 李陶深[1] 

机构地区：[1]中南大学信息科学与工程学院,长沙410083 [2]广西大学计算机与电子信息学院,南宁530004

出　　处：《计算机应用研究》2007年第11期121-123,126,共4页Application Research of Computers

基　　金：广西留学回国人员科学基金资助项目(桂科回0342001);广西科技攻关项目(桂科攻033008-9)

摘　　要：提出一种基于位平面分解技术的JPEG压缩水印算法。该算法首先对图像进行置乱变换;然后采用位平面分解技术对灰度水印图像进行预处理操作,将该灰度水印图像转换成二值信息流;最后把水印嵌入载体图像中。实验表明,该算法对于不同类型的攻击有较强的鲁棒性。The paper proposed a JPEG watermarking algorithm based on the decomposing technique of bit plane. This algorithm made a scrambling change to image at first, and then performed pre-processing operation of grey watermark image by using the decomposing technique of bit plane and changed the grey watermark image into binary-sequences. Finally, it embedded the watermark into cartier image. The experimental results show that the algorithm is robustness for different kinds of attack.

关 键 词：数字水印 位平面分解 置乱变换 静止图像压缩 鲁棒性 

分 类 号：TP309.2[自动化与计算机技术—计算机系统结构]