A Single Image Random Dot Autostereogram (SIRDS) produced on an Apple Mac using the Sirds Application by Katsura Software. If you use Windows - and want to have a go yourself - there are some free applications and Photoshop plugins available for your OS if you search for them. The image is a so called "wall eye" type (as opposed to a "cross eye" type). To see the "hidden" 3D image, look distantly beyond the surface of the image until the repeated pattern re-locks. If it works for you, you…