Application of Hybrid Transform Domain Digital Watermarking in Power System Information Security

Shaomin Zhu; Zhiqiang Zhang

doi:10.3969／j.issn.1000-0801.2013.11.014

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Application of Hybrid Transform Domain Digital Watermarking in Power System Information Security

Electric power information column | 更新时间：2024-06-05

- Application of Hybrid Transform Domain Digital Watermarking in Power System Information Security
- Telecommunications Science Vol. 29, Issue 11, Pages: 82-86(2013)
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- DOI：10.3969／j.issn.1000-0801.2013.11.014
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- Published Online：2013-11，
  
  Published：20 November 2013
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Shaomin Zhu, Zhiqiang Zhang. Application of Hybrid Transform Domain Digital Watermarking in Power System Information Security[J]. Telecommunications science, 2013, 29(11): 82-86.
DOI：

Shaomin Zhu, Zhiqiang Zhang. Application of Hybrid Transform Domain Digital Watermarking in Power System Information Security[J]. Telecommunications science, 2013, 29(11): 82-86. DOI： 10.3969／j.issn.1000-0801.2013.11.014.

摘要

随着电力行业信息化工程的不断推进，有效实现对电力生产、运行和管理过程中应用的大量图像、音视频、三维模型等多媒体信息的安全防护，正成为电力信息安全研究与发展中的热点和亟待解决的难题之一。提出了一种新的基于混合变换域的数字图像水印算法，二值水印图像嵌入宿主图像经混合变换后的低频子带中。结合低频子带能量分布与视觉掩蔽特性，自适应地确定量化步长，通过量化修改分块低频系数矩阵奇异值实现水印嵌入。实验结果表明，该水印算法具有较好的视觉保真度和较强的顽健性，将在电力系统信息安全领域发挥更加重要的作用。

Abstract

With the rapid development of electric power information industry

a lot of multimedia products such as digital image

audio

video and three dimensional models were produced and applied during the electric power process of the production

operation and management. Therefore

how to realize digital media security effectively is becoming a challenging problem. A new image watermarking algorithm in hybrid transform domain was proposed. The secret watermark information bits were embedded into low frequency subband in hybrid transform. According to energy distribution and visual masking in low frequency subband

the singular values of the selected low frequency subband blocks were adaptively applied quantization index modulation for embedding watermark information. Experimental results show that the algorithm has good image vision fidelity. The proposed digital watermarking is playing a more important role in network security for electric power system.

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references

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