基于小波变换数字图像水印系统的抗攻击性研究  

Anti-aggressive Research of Digital Image Watermark System Based on Wavelet Transform

作　　者：兀旦晖[1] 李晗[2] 

机构地区：[1]陕西科技大学,陕西西安710021 [2]长安大学,陕西西安710061

出　　处：《计算机测量与控制》2011年第3期658-660,664,共4页Computer Measurement &Control

基　　金：陕西省教育厅专项科研计划项目资助(05JK159)

摘　　要：针对计算机网络不断发展中多媒体版权难以保护问题,分析了数字水印的评估标准和数字图像小波分解原理;设计了一种基于DWT的二值水印算法系统,实验结果验证了该算法的有效性、可靠性、抗攻击性、不可见性;能够为媒体信息在防伪、防篡改、认证、保障数据安全和完整性等方面提供有效的技术保障。With the continuous development of computer networks, it is more difficult to protect multimedia copyright. In view of the problem, the evaluation criteria of digital watermarking and principles of digital image wavelet decomposition arc is analyzed; a binary digital watermarking algorithm system based on DWT is designed in this paper. And the results prove that the watermarking images according to DWT are with validity, dependability, robustness and invisibility. It can provide effective protection for digital media forgery, falsification, authentication, security and intactness.

关 键 词：多媒体 数字图像 数字水印 小波变换 抗攻击性 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]