| DWT域半脆弱音频水印算法 |
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| 引用本文： | 雷敏,杨榆,罗守山,钮心忻.DWT域半脆弱音频水印算法[J].中国通信学报,2010,7(4):71-75. |
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| 作者姓名： | 雷敏 杨榆 罗守山 钮心忻 |
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| 摘 要： |
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| 收稿时间： | 2011-06-23; |
Semi-Fragile Audio Watermarking Algorithm in DWT Domain |
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| LEI Min,YANG Yu,LUO Shoushan,NIU Xinxin.Semi-Fragile Audio Watermarking Algorithm in DWT Domain[J].China communications magazine,2010,7(4):71-75. |
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| Authors: | LEI Min YANG Yu LUO Shoushan NIU Xinxin |
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| Affiliation: | 1Key Laboratory of Network and Information Attack & Defence Technology of MOE, Beijing University of Posts and Telecommunications, Beijing, 100876, China
2School of Software Engineering , Beijing University of Posts and Telecommunications, Beijing, 100876, China |
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| Abstract: | A novel semi-fragile audio watermarking algorithm in DWT domain is proposed in this paper. This method transforms the original audio into 3-layer wavelet domain and divides approximation wavelet coefficients into many groups. Through computing mean quantization of per group, this algorithm embeds the watermark signal into the average value of the wavelet coefficients. Experimental results show that our semi-fragile audio watermarking algorithm is not only inaudible and robust against various common images processing, but also fragile to malicious modification. Especially, it can detect the tampered regions effectively. |
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| Keywords: | Semi-fragile Watermarking Wavelet Transform Mean Quantization Tamper Detection |
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