I just released my first PI script. It's called ColorMask (I figured that most PI users expect US spelling) and is intended to simplify colour processing. It only takes a few fairly simple steps to go from Before:
http://rickstevenson.smugmug.com/pho.../i-dhJmdZC.jpg
to After:
http://rickstevenson.smugmug.com/pho.../i-DWsWZmJ.jpg
If you're a PI user interested in more details, I posted the script and the processing steps for this example at the PI forum:
http://pixinsight.com/forum/index.php?topic=7751.0
It was good fun to exercise my programming muscles after many years in management
Cheers,
Rick.