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.
出处
《计算机应用》
CSCD
北大核心
2006年第1期87-89,95,共4页
journal of Computer Applications
关键词
小波零树
汉明编码
混沌调制
鲁棒性
wavelet zerotree
Hamming code
chaos modulation
robust
