| 基于DCT域的数字水印算法 |
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| 引用本文： | 翟清清,王春兴,张姣姣.基于DCT域的数字水印算法[J].山东师范大学学报(自然科学版),2014(2):41-44. |
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| 作者姓名： | 翟清清 王春兴 张姣姣 |
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| 作者单位： | 山东师范大学物理与电子科学学院,济南250014 |
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| 基金项目： | 山东省科技发展计划项目（2011GGX10316）. |
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| 摘 要： | 数字水印技术是通过水印算法将作者的版权信息嵌入到多媒体数据中,以起到版权保护、秘密通信、数据文件的真伪鉴别等作用.笔者采用了DCT离散余弦变换（DCT,Discrete Cosine Transform）的算法,对图像进行了数字水印的嵌入和提取研究.并且基于MATLAB平台实现在DCT域中的图像数字水印嵌入和提取的仿真,实验结果表明这种算法具有较好的不可见性,对低通滤波和剪切攻击具有较好的鲁棒性.
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| 关 键 词： | 数字水印 DCT 版权保护 |
DIGITAL WATERMARKING ALGORITHM BASED ON DCT |
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| Zhai Qingqing,Wang Chunxing,Zhang Jiaojiao.DIGITAL WATERMARKING ALGORITHM BASED ON DCT[J].Journal of Shandong Normal University(Natural Science),2014(2):41-44. |
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| Authors: | Zhai Qingqing Wang Chunxing Zhang Jiaojiao |
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| Institution: | 1.School of Physics and Electronics, Shangdong Normal University,250014, Jinan, China;) |
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| Abstract: | Digital watermarking technique is that the auctorial copyright information is embedded into multimedia data in order to project copyright,realize secret communications,and authentificate digital files.We adopt an algorithm in DCT domain,which can embed and extracted watermarking information from a watermarked image.Then the experiments are carried out based on MATLAB to realize the simulation for digital watermarking image in DCT domain.The experimental results show that this scheme has a good invisibility and robustness against the Low-pass filtering attack and the cropping attack. |
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| Keywords: | digital watermarking DCT copyright protection |
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