Photoshop: How to Create a Stereoscopic Image for Crossed Eye Image Viewing

In this tutorial we will create a stereoscopic image for cross eye viewing, which means you will be able to view the final image in 3D and full color without the use of any special glasses. I will be creating a simple piece from scratch for the sake of this tutorial but the final technique learned can be applied to existing artwork very easily, granted you are the creator and have the PSD file.