摘要
本文提出了一种小波域透明图像水印算法 ,算法将一个二进制随机水印信号内嵌到一组按重要性选出的小波系数中。为了使透明水印具有较高的鲁棒性 ,内嵌过程将水印信号作为量化噪声嵌入小波零树编码的数字图像 ,实验获得了良好的结果。
This paper proposes an approach for transparent image watermarking in which a binary pseudo random watermark is embedded in a selected set of important wavelet coefficients.To ensure the watermark invisibility with high robustness,embedding is performed by adding watermark as quantisation noise into wavelet coefficients of embedded zerotree coding.Our experiments show good performance of this scheme.
出处
《通信学报》
EI
CSCD
北大核心
2001年第7期61-66,共6页
Journal on Communications
关键词
图像水印
小波变换
鲁棒隐形水印算法
image watermarking
wavelet transforms
copyright protection
