Best of Show 2012 - The International Obfuscated C Code Contest

A friend at MIT graphics sent this along.

"http://www.ioccc.org/2011/akari/akari.c

Not only is the input program ASCII art, but it can downsample .PPM/.PGM...and also text.  In fact, it downsamples itself, into the source code for a C program with reduced functionality.  And it can do it 4 times:

http://www.ioccc.org/2011/akari/hint.html