| 基于DCT与DWT的水印算法的比较分析 |
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| 引用本文： | 许郡.基于DCT与DWT的水印算法的比较分析[J].南通航运职业技术学院学报,2009,8(3):75-78,106. |
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| 作者姓名： | 许郡 |
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| 作者单位： | 扬州职业大学,信息工程学院,江苏,扬州,225009 |
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| 摘 要： | 数字水印技术是保护数字媒体安全的一种有效手段,但当前对数字水印技术的研究还有待进一步加强。文章阐述了数字水印技术的基本原理,介绍了离散余弦变换（DCT）和离散小波变换（DWT）水印算法,并通过攻击实验,对DCT和DWT水印技术在不可见性、鲁棒性、水印容量等方面进行了比较分析,以期对推进数字水印技术的发展起到一定的积极作用。
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| 关 键 词： | 数字水印 离散余弦变换 小波变换 |
Research on the Comparison and Analysis of Watermarking Based on DCT and DWT |
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| XU Jun.Research on the Comparison and Analysis of Watermarking Based on DCT and DWT[J].Journal of Nantong Vocational & Technical Shipping College,2009,8(3):75-78,106. |
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| Authors: | XU Jun |
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| Institution: | School of Information Engineering;Yangzhou Polytechnic College;Yangzhou 225009;China |
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| Abstract: | Digital watermark technique is an effective method to protect safety of digital media, while it is necessary to deepen the research on watermark technology now. This paper introduces the wavelet basic principles of digital watermark technique, focusing on the digital watermarking technology based on DWT and DCT. By the attacks of experiment, the imperceptibility, robustness and watermark capacity of digital watermarking technology based on DWT and DCT have been compared and analyzed. It plays an active role... |
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| Keywords: | Digital watermark Discrete Cosine Transform（DCT） Discrete Wavelet Transform（DWT） |
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