[1]陈北京,周春飞,王金伟,等.基于分数阶四元数傅里叶变换和遗传算法的彩色图像自适应水印算法[J].东南大学学报(自然科学版),2017,47(5):884-891.[doi:10.3969/j.issn.1001-0505.2017.05.008]
 Chen Beijing,Zhou Chunfei,Wang Jinwei,et al.Color image adaptive watermarking algorithm based on fractional quaternion Fourier transform and genetic algorithm[J].Journal of Southeast University (Natural Science Edition),2017,47(5):884-891.[doi:10.3969/j.issn.1001-0505.2017.05.008]
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基于分数阶四元数傅里叶变换和遗传算法的彩色图像自适应水印算法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
47
期数:
2017年第5期
页码:
884-891
栏目:
计算机科学与工程
出版日期:
2017-09-20

文章信息/Info

Title:
Color image adaptive watermarking algorithm based on fractional quaternion Fourier transform and genetic algorithm
作者:
陈北京123周春飞2王金伟123舒华忠4
1南京信息工程大学江苏省网络监控工程中心, 南京 210044; 2南京信息工程大学计算机与软件学院, 南京 210044; 3南京信息工程大学江苏省大气环境与装备技术协同创新中心, 南京 210044; 4东南大学影像科学与技术实验室, 南京 210096
Author(s):
Chen Beijing123 Zhou Chunfei2 Wang Jinwei123 Shu Huazhong4
1Jiangsu Engineering Center of Network Monitoring, Nanjing University of Information Science and Technology, Nanjing 210044, China
2School of Computer and Software, Nanjing University of Information Science and Technology, Nanjing 210044, China
3Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, China
4Laboratory of Image Science and Technology, Southeast University, Nanjing 210096, China
关键词:
彩色图像 四元数 自适应水印 分数阶傅里叶变换 遗传算法
Keywords:
color image quaternion adaptive watermarking fractional Fourier transform genetic algorithm
分类号:
TP391
DOI:
10.3969/j.issn.1001-0505.2017.05.008
摘要:
基于分数阶四元数傅里叶变换(FrQFT)和遗传算法,提出了一种新的彩色图像自适应水印算法.首先,依据直接从彩色载体图像提取的纹理、边缘和色调掩蔽特性,将图像块分为3种不同类型;不同类型块采用不同的Richard逻辑曲线确定水印嵌入强度,并采用遗传算法从不可见性和鲁棒性2个方面优化各Richard逻辑曲线参数;最后,根据由优化的Richard逻辑曲线确定的自适应水印嵌入强度,通过量化索引调制算法和冗余嵌入策略将水印自适应嵌入到彩色载体图像的FrQFT系数中.实验测试结果表明,所提算法在不可见性和鲁棒性2个方面均优于现有传统算法和基于四元数的算法.
Abstract:
A new color image adaptive watermarking algorithm is proposed based on the fractional quaternion Fourier transform(FrQFT)and the genetic algorithm. First, the image blocks are classified into three types according to the masking properties of texture, edge and color tone directly extracted from the color host image. The adaptive watermarking strength value of each block is determined by the corresponding Richard curve. And the parameters of the Richard curves are optimized by the genetic algorithm with the consideration of the invisibility and the robustness. Finally, according to the adaptive watermarking strength values decided by the optimized Richard curves, the watermarks are inserted into the FrQFT coefficients of the color host image by using the quantization index modulation algorithm and the redundant embedding strategy. The experimental results demonstrate that the proposed algorithm outperforms some existing conventional algorithms and some existing quaternion-based algorithms in terms of the invisibility and the robustness.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2017-04-09.
作者简介: 陈北京(1981—),男,博士,副教授,nbutimage@126.com.
基金项目: 国家自然科学基金资助项目(61602253)、江苏省自然科学基金资助项目(BK20150925,BK20151530)、江苏高校优势学科建设工程资助项目(PAPD)、江苏高校“青蓝工程”资助项目.
引用本文: 陈北京,周春飞,王金伟,等.基于分数阶四元数傅里叶变换和遗传算法的彩色图像自适应水印算法[J].东南大学学报(自然科学版),2017,47(5):884-891. DOI:10.3969/j.issn.1001-0505.2017.05.008.
更新日期/Last Update: 2017-09-20