摘要
提出一种同步数字音频水印算法。利用小波变换对原始音频数据进行分解,选取分解后的低频系数实现对水印信息的嵌入和提取。试验结果表明,该算法对于低通滤波、重采样、高斯白噪声、MPEG压缩等具有良好的鲁棒性。
Proposes all algorithm of synchronous digital audio watermarking. Original audio signal was decomposed by wavelet transform, the low frequency coefficients are selected to realize the insertion and abstraction of watermarking information. The experimental results show that this algorithm is robust to many operations and attacks on digital audio signal, such as cropping attack, low-pass filtering, re-sampling, Gaussian white noise and MPEG encoding.
出处
《现代计算机》
2008年第7期62-65,共4页
Modern Computer
基金
上海市教委基金资助(No.05-31)
关键词
音频数字水印
同步
零数字水印
Audio Digital Watermarking
Synchronous
Zero-Digital Watermarking
