| 应用小波变换实现数字水印 |
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| 引用本文： | 李燕,刘建华. 应用小波变换实现数字水印[J]. 渭南师范学院学报, 2003, 18(5): 53-54 |
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| 作者姓名： | 李燕 刘建华 |
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| 作者单位： | 桂林航天工业高等专科学校,计算机系,广西,桂林,541004 |
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| 摘 要： | 提出了一种利用小波变换实现数字水印的方法.其优点是良好的稳健性和层次性.这种算法充分利用小波变换的特点,把原始图象分解成多频段的图象来嵌入水印.检测时,把加了水印的图象塔式分解,通过计算处理每一层取得所有的有关信息.
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| 关 键 词： | 数字水印 DWT(离散小波变换) 多分辨率分解 |
| 文章编号： | 1009-5128(2003)05-0053-02 |
| 修稿时间： | 2003-03-06 |
Digital Watermarking Implementation in Wavelet Transform |
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| LI Yan,LIU Jian hua. Digital Watermarking Implementation in Wavelet Transform[J]. Journal of Weinan Teachers College, 2003, 18(5): 53-54 |
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| Authors: | LI Yan LIU Jian hua |
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| Abstract: | This paper presents an image watermarking technology based on disperse wavelet transform. It has the advantages of steadiness and layeredness, and the operation law makes full use of the characteristics of wavelet transform. The original images and watermarks are transformed into a multi frequent image to be embedded in watermark. Under inspection, it is subject to pyramidal multi resolution decomposition and as a result, all the related information can be obtained. |
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| Keywords: | digital watermarking disperse wavelet transform multi resolution decomposition |
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