Step 5

Select the Single Row Marquee Tool. You can find this in the toolbar and it may be hidden in the rectangular or elliptical marquee tool.

Step 6

You can choose either the single line horizontal or vertical marquee tool depending on your preference. I chose the horizontal one. Create a selection where you want the pixel stretch to begin. It is good to pick a spot somewhere near the middle or near your subject.

Step 7

Now press Ctrl+T or go to Edit> Transform> Scale to use the Transform tool. With this tool, stretch the selection until it fills the image with a pixel stretch effect. Here's what mine looked like after doing this step:

Step 8

Now we're going to make it blend in. First, we'll add a layer mask. Select the middle layer and then go to Layer> New Adjustment Layer> Reveal All.