You will learn how to manipulate a photograph in a way it will look like an object, melting snowman in my case, is sticking out of a photo using Photoshop CS5.
Not your average pixel effect tutorial, let me show you a nice little trick where you apply the normal square pixelated effect and turn it into checkered, diamond looking photo pixels.
In Photoshop CS6, the new version of Photoshop, you can use special cropping tool and you are done, but that doesn't mean you cannot achieve the same result with older versions.