| 基于小波变换的音频水印算法 |
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| 引用本文： | 张永平,苏广川. 基于小波变换的音频水印算法[J]. 计算机工程与应用, 2006, 42(35): 24-26 |
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| 作者姓名： | 张永平 苏广川 |
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| 作者单位： | 北京理工大学,电子工程系,北京,100081;中国人民武装警察部队学院,河北,廊坊,065000;北京理工大学,电子工程系,北京,100081 |
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| 摘 要： | 提出一种将水印同步与水印嵌入分开处理的新型数字音频水印算法。利用DWT低频分量能量集中、抗干扰能力强的特点,通过对其进行滤波来提取特征点,在特征点指定位置的中频分量进行多次的水印嵌入。由于使用多重密钥控制且同步准确,因而算法具有很强的鲁棒性和安全性。
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| 关 键 词： | 小波变换 数字水印 同步 |
| 文章编号： | 1002-8331（2006）35-0024-03 |
| 收稿时间： | 2006-05-01 |
| 修稿时间： | 2006-05-01 |
Audio Watermark Algorithm Based on Wavelet Transform |
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| ZHANG Yong-ping,SU Guang-chuan. Audio Watermark Algorithm Based on Wavelet Transform[J]. Computer Engineering and Applications, 2006, 42(35): 24-26 |
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| Authors: | ZHANG Yong-ping SU Guang-chuan |
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| Abstract: | A novel audio watermark algorithm is proposed by which synchronization and embedding are processed separately.The low frequency component after DWT has the property of energy concentration and robust to interference, Features are extracted by filtering the low frequency component.Watermarks are embedded repeatedly at the positions of middle frequency component appointed by these features.The algorithm has perfect robustness and security by using multiple secret controlling and accurate synchronization. |
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| Keywords: | wavelet transform digital watermark synchronization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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