[Image-SIG] show a matrix as image

[Elias Fotinis]

From: Milton Cezar Ribeiro 
> I tryed your suggestion but got an error message.
> [snip]
> AttributeError: setpalette

Oops! Sorry, that should be "putpalette", not "setpalette".

Also, have a look at the PIL documentation for more nice stuff:
    http://www.pythonware.com/library/pil/handbook/index.htm