基于小波零树结构的图像水印算法研究  

Research on digital image watermarking algorithm based on wavelet zerotree

作　　者：饶智坚[1] 常建平[1] 

机构地区：[1]南京航空航天大学信息科学与技术学院,江苏南京210016

出　　处：《计算机应用》2006年第1期87-89,95,共4页journal of Computer Applications

摘　　要：提出了两种基于小波零树结构的水印算法,其中嵌入水印采用有意义二值图像,通过引入汉明编码、混沌调制、精心选取小波零树等方案提高水印的鲁棒性。实验表明:该文提出的这两种算法都有较强的抵抗JPEG压缩攻击能力,并且对噪声、滤波、剪切等图像处理操作也取得了良好的鲁棒性。Two watermarking algorithms based on the wavelet zerotree were proposed. Between these two, the embedded watermark was meaning binary image, in order to increase the robustness. These two algorithms introduced hamming coding, chaos modulation and selected these wavelet zerotrees carefully. The simulation results demonstrate that these two algorithms are robust against JPEG compression, image processing and attack such as noise, filtering, cropping etc.

关 键 词：小波零树 汉明编码 混沌调制 鲁棒性 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]