An Audio Blind Watermarking Scheme Based on DWTDCTSVD

doi:10.13190/jbupt.2011s1.51.leim

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2011, Vol. 34 ›› Issue (s1): 51-54.doi: 10.13190/jbupt.2011s1.51.leim

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An Audio Blind Watermarking Scheme Based on DWTDCTSVD

Online:2011-10-28 Published:2011-10-28
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Abstract

Abstract:

A new audio blind watermarking scheme based on discrete wavelet transform  discrete cosine transform singular value decomposition (DWTDCTSVD) is proposed. In this algorithm, the audio is split as blocks, and each block is decomposed on twodimensional DWT, then the approximate subband coefficients are decomposed on DCT, and the first quarter of the DCT coefficients are decomposed on SVD transform and get a diagonal matrix. At last, the watermarking information is embedded into the diagonal matrix. The watermark embedding capacity is 2756 bit/s. Experiments show that the algorithm can get better balance between transparency and robustness of watermark, and it has strong robustness against the common audio signal processing such as MP3 compression, requantization, resampling, lowpass filter, cutting replacement and additive white Gaussian noise.

Key words: discrete wavelets transform, singular value decomposition, blind watermarking

CLC Number:

TN309

References

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An Audio Blind Watermarking Scheme Based on DWTDCTSVD

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