摘要
提出基于小波域人类视觉感知模型的有意义二值图像数字水印,利用Arnold变换置乱和Logistic混沌系统对水印进行加密,增强了水印系统的安全性,充分利用了小波域人类视觉系统,增强了水印系统的鲁棒性与容量。
Proposes a novel meaning binary image digital watermarking algorithm based on DWT. The watermarking system is encrypted by Arnold＇s cat map and Logistic chaotic sequences, so that the security of watermarking system is enhanced. Robustness and capacity of watermarking system is enchanced by utilizing wavelet-domain human visual system.
出处
《现代计算机》
2007年第6期40-42,48,共4页
Modern Computer
