L=imread('C:\Documents and Settings\Administrator\Pulpit\misiu.JPG');
L1=L(1:490,1:200, 1:3);
L2=L(1:490,201:400, 1:3);

L3=L(1:490,400:-1:200, 1:3);
L4=L(1:490,200:-1:1, 1:3);

new = [L1,L4];
new2 = [L3,L2];

figure();

% imshow([L2,L3]);
% imshow(new);
imwrite(new,'C:\Documents and Settings\Administrator\Pulpit\test12.JPG','JPG');
imwrite(new2,'C:\Documents and Settings\Administrator\Pulpit\test13.JPG','JPG');