计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (33): 185-186.DOI: 10.3778/j.issn.1002-8331.2010.33.052

• 图形、图像、模式识别 • 上一篇    下一篇

伪Zernike矩归一化的抗几何攻击图像水印

何 巍,孙劲光,杨忠旭   

  1. 辽宁工程技术大学 电子与信息工程学院,辽宁 葫芦岛 125105
  • 收稿日期:2009-04-02 修回日期:2009-05-26 出版日期:2010-11-21 发布日期:2010-11-21
  • 通讯作者: 何 巍

Anti-geometric attacks image watermarking scheme based on normalization of pseudo-Zernike moment

HE Wei,SUN Jin-guang,YANG Zhong-xu   

  1. School of Electronic and Information Engineering,Liaoning Technical University,Huludao,Liaoning 125105,China
  • Received:2009-04-02 Revised:2009-05-26 Online:2010-11-21 Published:2010-11-21
  • Contact: HE Wei,SUN Jin-guang,YANG Zhong-xu

摘要: 以改进的伪Zernike矩相关知识为基础,提出了一种改进的抗几何攻击的数字水印算法。该算法首先计算载体图像的伪Zernike矩,然后对其进行归一化处理。最后选择部分低阶矩幅值量化嵌入水印。实验结果表明该数字水印算法不仅可以抵抗常规的数字信号处理,而且较基于伪Zernike矩的抗几何攻击的数字水印算法有对旋转和缩放的联合攻击具有较好的抵抗能力。

关键词: 图像水印, 伪Zernike矩, 矩的归一化, 几何攻击

Abstract: An anti-geometric attacks image watermarking scheme is proposed based on normalization of pseudo-Zernike moment.Firstly,the pseudo-Zernike moments of the host image are computed.Secondly,the result is normalized.At last,the digital watermark is embedded into the host image by quantizing some low-lever moments.Experimental results show this scheme is not only robust against common signals processing,but also robust against the rotation and scaling of united attack.

Key words: image watermark, pseudo-Zernike moment, normalized moment geometric attack

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