| 一种基于DWT的数字音频水印算法 |
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| 引用本文： | 赵勇,夏薇,周卫红.一种基于DWT的数字音频水印算法[J].云南民族大学学报(自然科学版),2012,21(3):207-210,234. |
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| 作者姓名： | 赵勇 夏薇 周卫红 |
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| 作者单位： | 云南民族大学数学与计算机科学学院,昆明,650500 |
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| 基金项目： | 云南省教育厅科学研究基金，云南民族大学青年基金 |
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| 摘 要： | 小波变换可以将音频边缘信息完整提出,利用边缘掩蔽水印信息,使水印算法具有透明性,基于此提出了一种基于离散小波变换的数字音频水印算法,该算法将能代表更多版权信息的二维图像信息经过Arnold置乱变换,嵌入到音频小波变换域的低频系数中.并将该算法与已有的离散余弦(DCT)水印算法相比较,发现该算法在抵抗剪切、加噪、滤波及压缩攻击方面要优于DCT水印算法.
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| 关 键 词： | 数字音频水印 图像置乱 离散余弦变换 小波变换 水印攻击 |
A New Digital Audio Watermarking Algorithm Based on DWT |
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| ZHAO Yong
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XIA Wei
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ZHOU Wei-hong.A New Digital Audio Watermarking Algorithm Based on DWT[J].Journal of Yunnan Nationalities University:Natural Sciences Edition,2012,21(3):207-210,234. |
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| Authors: | ZHAO Yong XIA Wei ZHOU Wei-hong |
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| Institution: | (School of Mathematics and Computer Science,Yunnan University of Nationalities,Kunming 650500,China) |
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| Abstract: | As wavelet transform can extract the intact border message of the audio and make use of the watermarking Information,this paper proposes a new algorithm of digital audio watermarking based on discrete wave transform,embedding the two-dimensional image,which has more copyright message through Arnold scrambling into the low-frequency coefficient of the audio wavelet.The new algorithm has more advantages in resisting the shearing,noising,filtering and compressing than the existing DCT watermarking algorithm. |
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| Keywords: | digital audio watermarking image scrambling discrete cosine transform wavelet transform watermark attacking |
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