变换域结合人类视觉特性的数字水印研究  

Research on Digital Watermark in Transform Field Associated with Human Vision Characteristic

作　　者：梁宗保[1] 唐朝霞[2] 盛明兰[1] 

机构地区：[1]重庆交通大学信息科学与工程学院,重庆400074 [2]重庆交通大学教育技术中心,重庆400074

出　　处：《湘潭大学自然科学学报》2012年第3期102-106,共5页Natural Science Journal of Xiangtan University

基　　金：重庆市教委科技项目(编号:KJ090419)

摘　　要：为改善作为数字媒体知识产权保护主要手段的数字水印的实用性,利用人眼的视觉掩蔽特性,通过小波分解结合希尔伯特变换,实现了数字水印在不同分解子带的自适应嵌入,并进行了不同攻击的实验.实验结果表明,算法具有很好的透明性,同时对噪声攻击、高斯低通滤波、图像锐化、中值滤波等大部分典型攻击均具有较强的鲁棒性.To improve the practicality of the digital watermark which is taken as the important way for protecting the intellectual property rights of the digital media, by using the masking characteristic of the hu- man visual system, an implementation is achieved to embed the digital watermark into the different sub-area after wavelet decomposition based on wavelet transform and Hilbert transform. And then several attack tests are taken for verification. The results indicate that the proposed method has excellent transparency, as well as the strong robust for the most of the traditional attacks such as Noise attack, Gaussian low-pass fil- tering, Image sharpening and Median filtering and so on.

关 键 词：数字水印 小波变换 人类视觉特性 希尔伯特变换 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]