Create Unique Image (GUID to Image)

Question

I'd like to do something like SO does with profile pictures of new users. It seems to create a unique image based on a value.

How can I repeatedly create the same unique image from a GUID?

I'm open to doing this on the server, but would prefer a client side solution to create it on the fly.

Something like these:

Edit: How can I repeatedly create the same unique "nice looking" image from a GUID?

Answer 1

What you are looking for is called an Identicon.

I think this post might either give you want you want or give you some sample code to look at in order to generate your own images.

http://www.puls200.de/?p=316

Answer 2

GUID is byte array - so it is already a raw data for an image if you treat the same data as bitmap.

If your question is "how to create nice image" it is different story.