徐逸,孙刘杰,王勇,龚一珉.一种抗任意角度旋转的全息水印算法[J].包装工程,2017,38(17):183-187.
XU Yi,SUN Liu-jie,WANG Yong,GONG Yi-min.An Anti-Arbitrary-Angle-Rotation Holographic Watermarking Algorithm[J].Packaging Engineering,2017,38(17):183-187. |
| 一种抗任意角度旋转的全息水印算法 |
| An Anti-Arbitrary-Angle-Rotation Holographic Watermarking Algorithm |
| 投稿时间：2017-03-13 修订日期：2017-09-10 |
| DOI： |
| 中文关键词: 全息水印 DWT变换 仿射变换 旋转攻击 |
| 英文关键词: holographic watermark DWT transform affine transformation rotation attack |
| 基金项目:上海理工大学科技发展项目（16KJFZ017）；上海市教委科研创新重点项目（13ZZ111） |
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| 中文摘要: |
| 目的 针对目前数字水印在抗旋转攻击方面鲁棒性较差等问题，提出一种基于DWT变换和仿射变换的抗任意角度旋转的数字全息水印算法。方法 首先对数字水印进行全息加密，保证水印的安全性；结合DWT变换，将水印信息嵌入载体图像；然后通过仿射变换实现图像的角度校正，进而实现抗任意角度旋转攻击及其他常见攻击。结果 水印在受到各种攻击后，仍能被有效提取，尤其是抗任意角度旋转攻击，NC值均大于0.6。结论 提出的算法对任意角度旋转攻击有较强的鲁棒性，可以有效地从含水印的图像中提取水印信息，保证了水印的安全性和有效性。 |
| 英文摘要: |
| The work aims to propose a digital anti-arbitrary-angle-rotation holographic watermarking algorithm based on DWT transform and affine transformation, with respect to the poor robustness of the current digital watermarking in anti-rotation attack. Firstly, the encrypted hologram of the digital watermarking was done to ensure the watermark security. In combination with DWT transform, the watermark information was embedded in the carrier image. Then, the image angle was rectified based on the affine transformation, thus achieving the anti-arbitrary-angle-rotation attacks and other common attacks. After various attacks, especially the anti-arbitrary-angle-rotation attack, the watermark could still be effectively extracted. The NC value was greater than 0.6. The proposed algorithm is robust against the arbitrary angle rotation attack, and the watermark information can be effectively extracted from the watermarked image, which ensures the security and effectiveness of the watermark. |
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