介绍了一种用相邻阶小波相乘去检测边缘的方法-introduce a wavelet based edge detection scheme by scale multiplication.

音频水印嵌入提取算法。小波域上进行3层小波变换，在低频自带上嵌入消息-Audio watermarking detection algorithm. 3-layer wavelet transform performed on the wavelet domain, an embedded message comes at low frequencies