www.gusucode.com > wavelet 源码程序 matlab案例代码 > wavelet/InverseDWTUsingOrthogonalWaveletExample.m

    %% Inverse DWT Using Orthogonal Wavelet  
% Demonstrate perfect reconstruction using |dwt| and |idwt| with an 
% orthonormal wavelet.   
load noisdopp;
[A,D] = dwt(noisdopp,'sym4');
x = idwt(A,D,'sym4');
max(abs(noisdopp-x))