Robust image watermarking based on multiband wavelets and empirical mode decomposition

被引:130
作者
Bi, Ning [1 ]
Sun, Qiyu
Huang, Daren
Yang, Zhihua
Huang, Jiwu
机构
[1] Sun Yat Sen Univ, Dept Comp Sci & Comp Applicat, Guangdong Key Lab Informat Secur Technol, Guangzhou 510275, Peoples R China
[2] Univ Cent Florida, Dept Math, Orlando, FL 32816 USA
[3] Sun Yat Sen Univ, Dept Comp Sci & Comp Applicat, Guangzhou 510275, Peoples R China
[4] GuangDong Univ Business Studies, Informat Sci Sch, Guangzhou 510320, Peoples R China
[5] Sun Yat Sen Univ, Sch Informat Sci & Technol, Guangdong Key Lab Informat Secur Technol, Guangzhou 510275, Peoples R China
基金
中国国家自然科学基金;
关键词
empirical mode decomposition (EMD); image watermarking; multiband wavelets transformation (MWT);
D O I
10.1109/TIP.2007.901206
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
In this paper, we propose a blind image watermarking algorithm based on the multiband wavelet transformation and the empirical mode decomposition. Unlike the watermark algorithms based on the traditional two-band wavelet transform, where the watermark bits are embedded directly on the wavelet coefficients, in the proposed scheme, we embed the watermark bits in the mean trend of some middle-frequency subimages; in the wavelet domain. We further select appropriate dilation factor and filters in the multiband wavelet transform to achieve better performance in terms of perceptually invisibility and the robustness of the watermark. The experimental results show that the proposed blind watermarking scheme is robust against JPEG compression, Gaussian noise, salt and pepper noise, median filtering, and ConvFilter attacks. The comparison analysis demonstrate that our scheme has better performance than the watermarking schemes reported recently.
引用
收藏
页码:1956 / 1966
页数:11
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