How do I do this to an image?

[default0o8uxhphkiw4]

So I was messing around with this image which is my hand, and I must of clicked something that turned it into this: See Capture.PNG 

How did I do this, I want to do it to another image.

[J E L]

Does your history indicate what happened?

[Omar.Fathy · Accepted solution]

To make image like that you can use:
Filter > Filter gallery > Artistic > Cutout