Technology of Information Security
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App. Res. of Comp. Printed Article
Vol. 36, 2019 No. 6
1819-1823,1827

Robust watermarking algorithm based on DWT optimal multi-subgraph and SIFT geometric correction

Li Yingying1
Zhang Yifeng1,2,3
Cheng Xu1
Sun Yibo1
1. School of Information Science & Engineering, Southeast University, Nanjing 210096, China
2. Nanjing Institute of Communications Technology, Southeast University, Nanjing 211100, China
3. State Key Laboratory for Novel Software Technology, Nanjing University, Nanjing 210023, China
DOI: 10.19734/j.issn.1001-3695.2018.01.0042

Abstract

In order to improve the robustness of watermarking system, this paper proposed a DWT(discrete wavelet transformation) multi-subgraph based watermarking algorithm with PSO algorithm. The algorithm selected multiple subgraphs after DWT for DCT(discrete cosine transformation). Then used PSO algorithm to find the optimal combination weights of multiple subgraphs. It embedded and extracted the watermark by using the spread transform QIM principle. To improve the performance of watermarking algorithm in resisting the geometric attacks, this paper proposed an anti-geometric attack method based on improved SIFT. It adopted a round based feature point description method to improve the SIFT algorithm. Before watermark extraction, it performed geometric correction processing by SIFT feature point matching. Experimental results show, based on the imperceptibility of watermark, the robustness of DWT multi-subgraph based watermarking algorithm with PSO algorithm is better than watermarking algorithm based on DWT single-subgraph. Watermarking system with improved SIFT algorithm can significantly improve the resistance to geometric attacks.

Foundation Support

国家自然科学基金资助项目(61673108)
江苏省自然科学基金资助项目(BK20151102)
北京大学机器感知与智能教育部重点实验室开放课题资助项目(K-2016-03)
东南大学水声信号处理教育部重点实验室开放项目(UASP1502)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2018.01.0042
Publish at: Application Research of Computers Printed Article, Vol. 36, 2019 No. 6
Section: Technology of Information Security
Pages: 1819-1823,1827
Serial Number: 1001-3695(2019)06-045-1819-05

Publish History

[2019-06-05] Printed Article

Cite This Article

李莹莹, 张毅锋, 程旭, 等. 基于DWT最优多子图和SIFT几何校正的鲁棒水印算法 [J]. 计算机应用研究, 2019, 36 (6): 1819-1823,1827. (Li Yingying, Zhang Yifeng, Cheng Xu, et al. Robust watermarking algorithm based on DWT optimal multi-subgraph and SIFT geometric correction [J]. Application Research of Computers, 2019, 36 (6): 1819-1823,1827. )

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  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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