www.gusucode.com > wavelet 源码程序 matlab案例代码 > wavelet/DoubleDensityWvltTxdddtree2Example.m
%% Double-Density Wavelet Transform % Obtain the double-density wavelet transform of an image. %% % Load the image and obtain the double-density wavelet transform. load xbox; imagesc(xbox); colormap gray; wt = dddtree2('ddt',xbox,1,'filters1'); %% % Visualize the diagonal details in the two wavelet HH subbands. HH1 = wt.cfs{1}(:,:,5); HH2 = wt.cfs{1}(:,:,8); subplot(211) imagesc(HH1); colormap gray; subplot(212); imagesc(HH2);