| 基于Arnold置乱和离散傅立叶变换的图像加密算法 |
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| 引用本文： | 李永宁,钟小莉,谢旻旻.基于Arnold置乱和离散傅立叶变换的图像加密算法[J].唐山师范学院学报,2010,32(2):73-75. |
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| 作者姓名： | 李永宁 钟小莉 谢旻旻 |
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| 作者单位： | 青海民族大学,计算机学院,青海,西宁,810007 |
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| 摘 要： | 提出了一种新的基于Arnold图像置乱和离散傅立叶变换相结合的数字水印算法。首先将原始图像划分子块，对每一图像块进行DFT变换，将二值水印图像用Arnold变换置乱，然后按一定规则把水印信息分散嵌入到数字产品中。本算法复杂度较低，实用性较强。仿真结果证明其具有较好的鲁棒性和透明性以及抗JPEG压缩、旋转和噪声干扰能力。
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| 关 键 词： | 数字水印 Arnold置乱变换 DFT 水印嵌入 |
Image Encryption Algorithm Based on Arnold Image-Scrambling and Discrete Fourier Transform |
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| LI Yong-ning,ZHONG Xiao-li,XIE Min-min.Image Encryption Algorithm Based on Arnold Image-Scrambling and Discrete Fourier Transform[J].Journal of Tangshan Teachers College,2010,32(2):73-75. |
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| Authors: | LI Yong-ning ZHONG Xiao-li XIE Min-min |
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| Institution: | LI Yong-ning,ZHONG Xiao-li,XIE Min-min (School of Computer Science , Technology,Qinghai University for Nationalities,XiNing,810007,China) |
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| Abstract: | A new digital watermark algorithm based on Arnold image scrambling and discrete Fourier transform was represented. The watermark information is scrambled firstly and then embedded into the digital images with a certain method. Various attack tests were carried out , and the results show that this algorithm was of efficiency, good transparency and robustness. |
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| Keywords: | DFT |
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