| 基于峰值量化的小波域数字音频水印算法 |
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| 引用本文： | 谢宏,于芳.基于峰值量化的小波域数字音频水印算法[J].上海海事大学学报,2008,29(3):41-45. |
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| 作者姓名： | 谢宏 于芳 |
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| 作者单位： | 上海海事大学,信息工程学院,上海,200135 |
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| 摘 要： | 为提高数字音频水印算法的鲁棒性,在量化小波参数的基础上,引入量化峰值的方法,通过改变小波系数峰值的方法嵌入水印,采用视觉可辨的二值图像作为水印,以增强数字水印的直观性,并以不同结构和长度的m序列来提高嵌入水印的隐蔽性.实验表明该算法不仅具有较好的透明性,而且对添加噪声和低通滤波等操作具有较强的鲁棒性.
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| 关 键 词： | 离散小波变换 音频水印 峰值量化 m序列 |
| 收稿时间： | 3/4/2008 12:00:00 AM |
| 修稿时间： | 2008/5/27 0:00:00 |
Digital audio watermarking algorithm in wavelet domain based on peak quantization |
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| XIE Hong and YU Fang.Digital audio watermarking algorithm in wavelet domain based on peak quantization[J].Journal of Shanghai Maritime University,2008,29(3):41-45. |
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| Authors: | XIE Hong and YU Fang |
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| Institution: | Information Engineering College, Shanghai Maritime Univ;Information Engineering College, Shanghai Maritime Univ |
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| Abstract: | In order to improve the robustness of digital audio watermarking algorithm, the method of peak
quantization is introduced based on quantified wavelet parameters. Watermarking is embedded with
changing the peak value of wavelet parameters. The visually recognizable binary watermarking image enhances the visibility of digital watermarking. The invisibility of embedded watermarking is increased through using m-sequences, which has different structures and different length. Experimental results show that this watermarking algorithm has better transparency and robustness, especially for adding noise and low pass filtering. |
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| Keywords: | discrete wavelet transform audio watermarking peak quantization m-sequence |
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