应用小波进行压缩和滤波的matlab程序.程序选用Daubechies的仅4个系数的小波函数，也可选用其他小波函数，详见说明。-wavelet compression and filtering of Matlab procedures. Procedures for the selection of Daubechies only four coefficients of wavelet function can also choose other wavelet function, as described in note.