I was in the process of including my last tutorial on curves in some forum posts around the internet when I visited gimpchat.com again. After I had posted my link I was perusing the tutorials board when I came across user
lylejk's post about
implementing a true pseudo-grey on images in GIMP.
Randi PseudoGrey (mouseover for desaturated 256 value version)
It was an interesting read, but the thing that started me thinking was the implementation. It was a manual implementation
in his tutorial, and I figured I could slap together some script-fu to automate the process.
