摘要
提出了一种基于小波变换的多分辨率数字水印隐藏与检测新算法,算法的优点在于其算法简单。利用小波变换的快速、简单和多分辨率特点,将水印信号隐藏在第1、2、3级的详细分量(细节信号)中保证了水印的稳健性,具有很强的抵御各种信号处理变换的能力,适用于数字语音等信号的版权保护。最后给出了计算机仿真实验结果,证明了本算法的有效性。
In this paper,a new algorithm for dig ital audio watermarking based on the discrete wavelet transform is proposed.The i mplementation of the algorithm is simple and the watermarking are em-bedded into audio signal by the diffe rent resolution level with wavelet t ransform.The digital watermarked can be easily detected by using this a lgorithm even though the watermarked audio signal is being sorely con-taminated.Simulation results were given to show the detection of the dig ital watermarking when the water-marked audio signal was being processed or under strong noises.Finally,computer simulation results show that the algorithm for digital watermark embedding and detecting is effe ctive.
出处
《通信技术》
2002年第11X期86-88,共3页
Communications Technology
关键词
DWT
数字音频
数字水印
Discrete wavelet transform,digita l audio,digital watermark
