基于入耳听觉特性和小波变换的时频特性,提出了一种水印嵌入与检测算法。通过提取音频信号幅度的最大值进行小波变换,再在小波变换的重要系数中嵌入水印。仿真实验证明:该算法隐藏水印具有较好的不可感知性和较强的稳健性。
A digital audio watermarking embedded and test algorithm is proposed based on the characteristic of human auditory and the wavelet transform, in which the discrete wavelet transform (DWT) is based on extracting the maximum aural signal amplitude, and embedding the watermark into the important coefficients on DWT domain. Simulation results show that the proposed algorithm can achieve high imperceptibility and satisfactory robustness.