[X1,map1]=imread('forest.tif');
[X2,map2]=imread('trees.tif');
%分別讀入兩個(gè)索引圖像
subplot(1,2,1), imshow(X1,map1)
subplot(1,2,2), imshow(X2,map2)
%用imshow函數(shù)顯示這兩個(gè)圖像

[X1,map1]=imread('forest.tif');
[X2,map2]=imread('trees.tif');
subplot(1,2,1), subimage(X1,map1)
subplot(1,2,2), subimage(X2,map2)
%用subimage函數(shù)顯示這兩個(gè)圖像