[1]徐振启,卢洵,罗少鹏..基于时空二维混沌的自适应彩色图像水印算法[J].郑州大学学报(工学版),2007,28(02):84-87.[doi:10.3969/j.issn.1671-6833.2007.02.022]
　Xu Zhenqi,Lu Xun,Luo Shaopeng.Adaptive color image watermarking algorithm based on two-dimensional chaos in space and time[J].Journal of Zhengzhou University (Engineering Science),2007,28(02):84-87.[doi:10.3969/j.issn.1671-6833.2007.02.022]

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基于时空二维混沌的自适应彩色图像水印算法()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

28

期数:

2007年02期

页码:

84-87

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Adaptive color image watermarking algorithm based on two-dimensional chaos in space and time

作者:

徐振启; 卢洵; 罗少鹏.

解放军信息工程大学,理学院,河南,郑州,450001, 解放军信息工程大学,理学院,河南,郑州,450001, 解放军信息工程大学,理学院,河南,郑州,450001

Author(s):

Xu Zhenqi; Lu Xun; Luo Shaopeng

关键词:

数字水印;  时空混沌;  人类视觉模型;  离散余统变换域;  鲁棒性

Keywords:

digital watermarks;  space-time chaos;  human visual models;  Discrete recombination transformation domains;  Robustness

DOI:

10.3969/j.issn.1671-6833.2007.02.022

文献标志码:

A

摘要:

提出一种基于时空混沌的离散余弦变换域(DCT域)自适应彩色图像水印算法.算法采用时空混沌模型生成混沌序列对二值水印进行置乱加密,同时结合改进的人类视觉模型(HVS)图像块分类方法和彩色图像RGB分量特点确定水印嵌入强度,最后,水印被重复嵌入到彩色图像RGB各个分量DCT中频变换系数中.实验结果表明,该算法对于抵抗各种噪声、滤波和压缩等攻击具有非常好的鲁棒性,在分别遭受压缩比为30%、剪切掉25%的攻击时,仍能提取出相似度为0.914和0.869的水印.

Abstract:

An adaptive color image watermarking algorithm based on space-time chaos in the discrete cosine transformation domain (DCT domain) is proposed. The algorithm uses the spatiotemporal chaos model to generate chaotic sequences to scramble and encrypt the binary watermark, and determines the watermark embedding intensity by combining the improved human vision model (HVS) image block classification method and the RGB component characteristics of color images, and finally the watermark is repeatedly embedded in the DCT intermediate frequency transformation coefficient of each component of the color image RGB. Experimental results show that the algorithm has very good robustness against various noise, filtering and compression attacks, and watermarks with similarity of 30.25 and 0.914 can still be extracted when subjected to attacks with a compression ratio of 0% and a shear of 869%, respectively.

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