load woman2
subplot(2,2,1)
imshow(X,map)
X1 = imresize(X,2,'nearest');
subplot(2,2,2)
imshow(X1,[]);
X2 = imresize(X,2,'bilinear');
subplot(2,2,3)
imshow(X2,[]);
X3 = imresize(X,2,'bicubic');
subplot(2,2,4)
imshow(X3,[]);