Hidden Image Exposed in Da Vinci's "The Last Supper" Painting!

Looking at the famous Da Vinci, “The Last Supper” picture, mirroring and inverting the picture in the correct way, inverting it right down the middle you get a hidden image that is unbelievable.

What is revealed is absolutely Jaw Dropping!

The question is, what did Da Vinci Know that he is trying to reveal?

Link: Photo's "The Last Supper

Wikipedia
http://upload.wikimedia.org/wikipedia/commons/3/34/DaVinciCodeSolution.jpg

Original
http://dl.dropboxusercontent.com/u/3687918/the_original.jpg

Mirror
http://dl.dropboxusercontent.com/u/3687918/Mirror_aligned.png