| 基于小波分解的数字水印技术 |
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| 引用本文： | 胡娟,杨格兰.基于小波分解的数字水印技术[J].湖南理工学院学报,2006,19(2):72-74. |
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| 作者姓名： | 胡娟 杨格兰 |
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| 作者单位： | 湖南理工学院计算机系 湖南岳阳414000(胡娟)，湖南城市学院计算机系 湖南益阳413049(杨格兰) |
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| 摘 要： | 分析了一种基于小波变换数字水印方案。该方案利用小波变换对图像进行多级分解,通过计算自适应域值确定要嵌入随机数字水印信息的系数。以高斯分布的随机数作为水印信息,水印嵌在除HL1、LH1、HH1外的图像3级DWT分解的7个子带中。实验结果表明,水印具有良好隐蔽性和鲁棒性。
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| 关 键 词： | 数字水印 小波变换 鲁棒性 |
| 文章编号： | 1672-5298（2006）02-0072-03 |
| 收稿时间： | 2005-09-16 |
| 修稿时间： | 2005年9月16日 |
Digital image watermarking technology based on wavelet transform |
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| HU Juan,YANG Ge-lan.Digital image watermarking technology based on wavelet transform[J].Journal of Hunan Institute of Science and Technology,2006,19(2):72-74. |
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| Authors: | HU Juan YANG Ge-lan |
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| Abstract: | A new method was analysed for embedded digital watermarking in digital image based on the wavelet transform. We performed the wavelet multi-resolution for digital image and determine the coefficients for embedded watermarking by computing self-adaptation value, we choosed random numbers produced by Gauss distribution as watermarking information, the watermarking were embedded in seven sub-bands of three stages of DWT decomposition except for HL1. LH1, HH1 sub-bands. The experiments show that the watermarking is perceptually invisible and robustablc. |
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| Keywords: | digital watermarking wavelet transform robust |
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