ch3_2_6.m

来自「常用图像处理源码合集」· M 代码 · 共 12 行

I = imread('cameraman.tif');
udata = [0 1];  vdata = [0 1];  %输入坐标系统
tform = maketform('projective',[ 0 0;  1  0;  1  1; 0 1],...
                               [-4 2; -8 -3; -3 -5; 6 3]);
[B,xdata,ydata] = imtransform(I, tform, 'bicubic', ...
                              'udata', udata,...
                              'vdata', vdata,...
                              'size', size(I),...
                              'fill', 128);
subplot(1,2,1), imshow(udata,vdata,I), axis on
subplot(1,2,2), imshow(xdata,ydata,B), axis on