畫好了
clc
clear?all
a(1:700,1:800,3)=255;
a(1:100,800:2400,1)=255;
a(100:200,800:2400,1:3)=255;
a(200:300,800:2400,1)=255;
a(300:400,800:2400,1:3)=255;
a(400:500,800:2400,1)=255;
a(500:600,800:2400,1:3)=255;
a(600:700,800:2400,1)=255;
a(700:800,1:2400,1:3)=255;
a(800:900,1:2400,1)=255;
a(900:1000,1:2400,1:3)=255;
a(1000:1100,1:2400,1)=255;
a(1100:1200,1:2400,1:3)=255;
a(1200:1300,1:2400,1)=255;
imshow(a);
%比例的確不對，是19：10，希望妳把程序看懂後自行修改，那就是妳自己的成果了。