基于圆锥曲面反射映射的彩色图像盲水印方法  

Blind color image watermarking method based on conic surface and reflection

作　　者：李岩山[1] 曹文明[2] 

机构地区：[1]深圳大学ATR国防科技重点实验室,广东深圳518060 [2]深圳大学信息工程学院,广东深圳518060

出　　处：《计算机应用研究》2011年第5期1894-1896,共3页Application Research of Computers

基　　金：国家自然科学基金资助项目(60672153)

摘　　要：讨论了Clifford代数中反射映射和旋转的性质和三维Clifford空间中彩色图像的Clifford傅里叶变换的特点,构造了彩色图像水印圆锥曲面,并证明了水印圆锥曲面应用于彩色图像水印的可行性;提出基于圆锥曲面反射映射的彩色图像盲水印方法,该方法运用简单直观的Clifford反射映射将水印信息嵌入到原始图像中,且水印提取不需要原始图像。实验结果显示,该方法能较好地抵抗多种滤波、加噪、旋转、剪切等攻击,是一种行之有效的彩色图像盲水印方法。This paper introduced the properties of reflection and rotation in Clifford algebra and discussed some useful characteristics of the Clifford Fourier transform of the color image in 3D Clifford algebra space.In order to add watermark effectively,firstly structured a conic surface of the color image watermarking and proved the feasibility of using it to the color image watermarking.Then proposed the blind color image watermarking method based on the conic surface and reflection,which used the theory of the reflection in Clifford algebra to add the watermark to the color image,and got the watermark from the marked image without the original image.The result of the experiment shows the algorithm has good performance of the resistance to the attack of many filtering,noise,rotation and cutting,and is an effective method.

关 键 词：CLIFFORD代数 彩色图像 盲水印 圆锥曲面 反射映射 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]