otv-crop

I1 = imread('20170722.jpg');
sz = size(I1);
X = sz(1) / 2;
Y = sz(2);
for i=1:X
  for j=1:Y
    I2(i, j) = I1(i, j);
  end
end
figure
subplot(1, 3, 1);
imshow(I1);
title('origin');
subplot(1, 3, 3);
imshow(I2);
title('cropped');