Step 1: Get a Good Picture
Step 2: Open the picture
Step 3: Offsetting the image
1. Go to the "Image" drop-down, and click "Canvas Size". From there, make both of the drop-downs show "percent", and then change the percent to 50. Then, change the drop-downs back to "pixels" and remember the numbers.
2. Go to the "Image" drop-down, and click "Canvas Size". Calculate half of the canvas sizes, and remember the numbers.
Our bacon image is to be offset 190 x 127 pixels.
To offset, go to "Filter", "Other", "Offset..."
Make sure you select "Wrap Around"
P.S. Sometimes, if you have been working on the picture beforehand, make sure to crop the image, and select to delete the cropped out part. This gets rid of any unwanted offsetting.