www.gusucode.com > Matlab实现的隐马尔科夫树模型源码程序 > contourletHMT/type4detransform.m
%type4detransform.m %written by: Duncan Po %Date: June 27/2002 % utility file used in tree2contourlet.m % usage: [x,y] = type4detransform(z) % decomposes z into x and y function [x,y] = type4detransform(z) row = size(z,1); col = size(z,2); z = z.'; z = reshape(z, col*4, row/4); x = z(1:(col*2), :); y = z((col*2+1):col*4,:); x = reshape(x, col, row/2); y = reshape(y, col, row/2); x = x.'; y = y.';