摘要
为解决图像数字水印中透明性和稳健性之间的矛盾,提出了一种图像数字水印的新方法.该方法根据Hermit矩阵的较大特征值对应的特征向量对扰动不敏感的特性,选取宿主图像的较大特征值作为水印.这样的水印是完全透明的,而且能够很好地抵抗对图像的噪声、几何、滤波等攻击.
In order to solve the contradiction between the robustness and invisibility of the digital image watermark, a new digital image watermarking algorithm is presented. Based on the character that the greater singular value of the Hermit matrix is not sensitive under some perturbation, the algorithm chooses the greater singular value of the original image as the watermark, which is both invisible and has better resistivity to the attack of noise, geometry and flit on the image.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2008年第6期1127-1130,共4页
Journal of Xidian University
基金
陕西省教育厅专项资助(JK05303)
关键词
矩阵扰动
数字水印
透明性
稳健性
matrix perturbation
digital watermark
invisibility
robustness
