Shrinking an Image - Pics for Method 2

Images created using imwrite for shrinking an image, using the preferred Code: Method 2.

I left the images created using imshow up because they show the change in resolution, when shrinking the size of an image (i.e. reducing the number of pixels), better:

Note: This above image is how imread/imshow displays the facebook rainbow in Octave.

Method 2 displays the best pictures when shrinking an image. The pictures for Method 3 are very similar, but with slightly poorer resolution. Method 1 produced images for f=0.1 that were almost entirely white for the two internet pics.