| 一种新的基于混合域的数字音频水印 |
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| 引用本文： | 张明,付炜,陈建东.一种新的基于混合域的数字音频水印[J].电子技术,2009,36(8):78-79,72. |
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| 作者姓名： | 张明 付炜 陈建东 |
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| 作者单位： | 燕山大学,信息科学与工程学院 |
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| 摘 要： | 在数字水印的基础上，提出了一种基于DCT和DWT混合域的音频水印的算法。首先对原始的音频信号进行离散小波变换，得到音频信号的精细分量和近似分量，然后对这两种系数进行离散余弦变换，最后将两种不同的水印嵌入到两种系数。提取水印信息时，不管音频信号的长度如何，均采用相同的方法进行变换。实验证明，此方法可以实现不丢失音频信号的频率信息，在考虑嵌入的两种不同水印的顺序的原则下，实现嵌入和提取信息的同步。
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| 关 键 词： | 音频水印 离散小波变换 鲁棒性 脆弱性 |
A New Digital Audio Watermarking Based On the Mixed-domain |
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| Zhang Ming,Fu Wei,Chen Jiandong.A New Digital Audio Watermarking Based On the Mixed-domain[J].Electronic Technology,2009,36(8):78-79,72. |
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| Authors: | Zhang Ming Fu Wei Chen Jiandong |
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| Affiliation: | College of Information Science and Engineering;Yanshan University |
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| Abstract: | On the basis of digital watermarking an algorithm for audio watermarking based on the mixed domain of DCT and DWT domain audio is proposed,which carries out discrete wavelet transform on the original audio signals first to obtain the fine and approximate components of the audio signal, then carries out discrete cosine transformation on these two coefficients, and finally embeds two different watermark into two kinds of coefficient.When extracting watermark information, regardless of the length of audio sign... |
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| Keywords: | audio watermarking discrete wavelet transform robustness vulnerability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
