| 一种基于DCT中频的图像水印技术 |
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| 引用本文： | 蔡汉添,何军辉.一种基于DCT中频的图像水印技术[J].华南理工大学学报(自然科学版),2001,29(12):57-60. |
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| 作者姓名： | 蔡汉添 何军辉 |
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| 作者单位： | 华南理工大学,电子与通信工程系, |
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| 摘 要： | 数字水印技术在数学产品的版权保护，使用监控，安全传输和保密通信等方面潜在巨大应用前景，本文研究一种基于DCT中频的图像水印技术，该算法根据JPEG量化表自适应地调整嵌入到图像DCT中频系数的水印信号的强度,实验结果表明本文所提算法较好地兼顾了水印技术的透明性和鲁棒性的要求。
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| 关 键 词： | 数字图像水印 DCT 中频 水印嵌入 透明性 鲁棒性 数据加密 |
| 文章编号： | 1000-565X(2001)12-0057-04 |
An Image Watermarking Technique Based on DCT Middle-Frequency |
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| Cai Han_tian,He Jun_hui.An Image Watermarking Technique Based on DCT Middle-Frequency[J].Journal of South China University of Technology(Natural Science Edition),2001,29(12):57-60. |
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| Authors: | Cai Han_tian He Jun_hui |
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| Abstract: | Watermarking technology possesses great potentials of application in the copyright protection of digital multimedia products as well as in data monitoring and communication security. An image watermarking technology based on DCT middle_frequency is introdnced in this paper. In this approach, the watermarks are embeded into the DCT middle frequency coefficients of the images adapted to the JPEG quantization table. The experiment results show that this technology meets the demand of transparency and robustness to a great extent. |
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| Keywords: | digital image watermarking DCT middle_frequency |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
