ex2605.m

matlab程序

%例26-5 图像写回命令imwrite
dir *.jpg
A=imread('leaf.jpg');
whos
B=A(300:500,200:900,:);
imwrite(B,'leaf-part.jpg')
dir *.jpg
C=imread('leaf-part.jpg');
subplot(1,2,1)
image(A);axis image;title('全部')
subplot(1,2,2)
image(C);axis image;title('部分')