| 基于离散余弦变换的数字水印图象 |
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| 引用本文： | 丁玮,齐东旭.基于离散余弦变换的数字水印图象[J].北方工业大学学报,1999,11(3):71-75. |
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| 作者姓名： | 丁玮 齐东旭 |
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| 作者单位： | [1]中国科学院计算技术研究所CAD开放研究实验室 [2]北方工业大学CAD研究中心 |
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| 摘 要： | 从离散余弦变换出发，提出了一种图象中植入数字水印的方法。此方法与ＪＰＥＧ，ＭＰＥＧ图象数据压缩标准算法相一致，不仅可方便地实现水印的图象植入，而且在ＪＥＰＧ，ＭＰＥＧ压缩之下，可取得高质量图象效果，并在很大程度上解决了由于图象能量损失导致的数字水印丢失问题。
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| 关 键 词： | 离散余弦变换 数字水印 信息隐蔽 图象处理 |
Digital Watermark Image Based on Discrete Cosine Transformation |
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| Ding Wei, Yan Weiqi, Qi Dongxu.Digital Watermark Image Based on Discrete Cosine Transformation[J].Journal of North China University of Technology,1999,11(3):71-75. |
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| Authors: | Ding Wei Yan Weiqi Qi Dongxu |
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| Abstract: | Starting from discrete cosine transformation, this paper presents a new way to embed digital watermark in images. This method accords with JPEG, MPEG image compression standard. It can no only easily embed watermark into images, but al-so produce a better effect of embedded images even after JPEG, MPEG compression.The method solves the problem of digital watermark image loss caused by images energy loss. |
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| Keywords: | discrete cosine transformation digital watermark information hiding |
| 本文献已被 CNKI 维普 等数据库收录！ |
