###
DOI:
本文二维码信息
基于函数映射机制的鲁棒性二重数字水印算法
张渊, 丁勇, 罗小华
(浙江大学)
Robust Dual Digital Watermarking Algorithm Based on Function Mapping Mechanism
zhangyuan, dingyong, luoxiaohua
(Zhejiang University)
摘要
相似文献
本文已被:浏览 1065次   下载 
投稿时间:2010-10-20    修订日期:2010-11-24
中文摘要: 针对二重数字水印嵌入信息量相对较大及其水印之间相互干扰的特点,本文提出了一种基于函数映射机制的二重数字水印算法。将第一、二重水印建立某种函数映射关系,在嵌入水印时,只需嵌入一份水印样本,并联合小波变换、离散余弦变换和奇异值分解技术,将水印嵌入在寄主图像中。实验表明,该算法不仅有很好的透明性,而且对各种常规数字信号处理和几何攻击也有很强的鲁棒性。
Abstract:For the characteristics of dual digital watermarking, in which information capacity to be embedded is relative large and the two watermarks interfere with each other, a robust dual digital watermarking algorithm based on function mapping mechanism is proposed in this paper. In the algorithm some kind of function mapping relationship between the first level watermark and the second level watermark is established. Thus, only one watermark is needed. Then the watermark is embeded in host image using the discrete wavelet transform, discrete cosine transform and singular value decomposition technology. Experimental results show that the proposed scheme not only has a good transparency ,but also is robust to many kinds of common digital signal processing and geometrical attacks
文章编号:20101020001     中图分类号:    文献标志码:
基金项目:国家高技术研究发展计划(863计划)
引用本文:
张渊,丁勇,罗小华.基于函数映射机制的鲁棒性二重数字水印算法[J].华东理工大学学报(自然科学版),DOI:.

用微信扫一扫

用微信扫一扫