小波单尺度和多尺度的分解和重构，显示最低频和所有高频系数及重构信号-Wavelet single-scale and multi-scale decomposition and reconstruction, show the low-frequency and high-frequency coefficients and the reconstructed signal

多层小波分解变换，适用一维二维小波变换，经分解后实现重构-Multi-layer wavelet transform, it is suitable for one-dimensional two-dimensional wavelet transform, reconstruct after decomposition