English
- %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.';
