摘要
随着计算机网络和多媒体技术的飞速发展,数字水印技术作为知识产权保护的有效手段,正得到广泛的研究与应用。数字水印技术向多媒体作品中加入不易察觉但可以判定区分的秘密信息,从而起到保护数字作品的版权或完整性的作用。根据人眼视觉系统模型对图像感知的视觉掩蔽效应,提出了一种基于混沌序列的时空域数字水印的改进算法。最后,实验说明了算法的有效性和稳健性。
With the rapid development of the computer, network and multimedia technology,digital watermarking has been widely studied and applied as an effective method for copyright protection.To protect the copyright or the integrity of the workings,digital watermarking embeds imperceptible but distinguishable secret messages into the media.An improved algorithm in spatial domain based on chaotic sequences is proposed in conjunction with the human visual model.The experimental results show that the hidden watermark is robust to most common procedures of signal processing and JPEG compression.
出处
《计算机应用研究》
CSCD
北大核心
2003年第4期52-54,共3页
Application Research of Computers
基金
国家"973"重点基础研究资助项目(G1998030417)
德国西门子公司教席基金资助项目
关键词
数字水印
版权保护
混沌序列
人类视觉系统
Digital Watermarking
Copyright Protection
Chaotic Sequences
HVS(Human Vision System)
