摘要
提出了一种基于遗传算法的多小波数字图像水印算法,在离散多小波变换(DMT)域中嵌入水印信息,利用遗传算法进行参数优化,提高水印图像的质量和水印的鲁棒性。实验结果表明,在利用遗传算法在GHM多小波变换域中嵌入水印比离散小波变换(DWT)域中嵌入水印更具有鲁棒性。
A novel multiwavelet image watermarking algorithm based on genetic algorithms is proposed. Watermarking information is embed in discrete multiwavelet transform (DMT) domain, genetic algorithms is used to optimize the parameters, thus the robustness of the watermark and the visual quality of watermarked image are both improved. The experimental results show that the new algorithm give more robustness of the watermark than base on discrete wavelet transform (DWT) domain.
出处
《计算机工程与设计》
CSCD
北大核心
2008年第7期1625-1628,1632,共5页
Computer Engineering and Design
基金
湖南省自然科学基金项目(05JJ30123)
湖南省教育厅科学研究基金项目(05C246)
关键词
多小波
遗传算法
图像水印
扩频水印
鲁棒性
multiwavelet
genetic algorithms
image watermarking
spread spectrumwatermarking
robustness