一种基于均值量化的小波域自同步数字音频水印算法

提出了一种基于均值量化的小波域自同步数字音频水印算法。该算法是一种盲检测算法,检测时不需要原始音频信号。算法引入了系数均值量化的思想,音频信号进行小波分解后,对其中的低频系数进行均值量化,嵌入水印;并且引入了嵌入同步信号的思想,利用同步信号来定位水印的嵌入位置,以抵抗平移、裁剪等攻击。实验结果表明该算法具有较强的鲁棒性和抗攻击性。

Digital Audio Watermarking Algorithm of Wavelet Domain Self-synchronization Based on Mean Quantization

This paper proposed a digital audio watermarking algorithn of wavelet domain self-synchronization based on mean quantization.The algorithm is a blind detection algorithm to detect without the original audio signal.The algorithm introduced the idea of mean coefficient quantization,after wavelet decomposition of the audio signal,on which the low frequency coefficients were meanly quantified and watermark was embedded;and introduced the idea embedded synchroization signals,using synchronous signal to locate the watermark embedding position to resist translation,cutting and other attacks.Experimental results show that the algorithm has strong robustness and anti-aggressive.