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    %% Perfect Reconstruction Using Complex Oriented Dual-Tree Wavelet Filter Bank  
% Demonstrate perfect reconstruction of an image using a complex oriented
% dual-tree wavelet transform.   

%% 
% Load the image and obtain the complex oriented dual-tree wavelet transform
% down to level 5 using |dddtree2|. Reconstruct the image using |idddtree2|
% and demonstrate perfect reconstruction. 
load woman;
wt = dddtree2('cplxdt',X,5,'dtf2');
xrec = idddtree2(wt);
max(max(abs(X-xrec)))