对音频信号分帧加窗,对每帧进行三阶小波变换,取其逼近系数平均值(一般为零).在此嵌入二值图像 并有对潜入水印信号进行盲检,恢复其嵌入水印-Sub-frame of the audio signal increases the Hamming window for each frame impletment third-order wavelet transform, whichever is close to the average coefficient (usually zero). a

matlab数字水印加密和嵌入程序，含有小波变换和Arnold变换函数代码-Matlab digital watermarking encryption and embedding procedures, including wavelet transform and Arnold transform function code

Mutual information is useful to calculate a set of procedures, Calculating a target and ocean echo power spectral density, Based on wavelet transform digital watermarking algorithm matlab code.