From the RawPedia (Getting Started)
RawTherapee is a cross-platform raw image processing program, released under the GNU General Public License Version 3. It was originally written by Gábor Horváth of Budapest. Rather than being a raster graphics editor such as Photoshop or GIMP, it is specifically aimed at raw photo post-production. And it does it very well – at a minimum, RawTherapee is one of the most powerful raw processing programs available. Many of us would make bigger claims…
At intervals of more than a month but not much more than two months, there is a Play Raw competition with an image and voting (plus commentary along the way).
Very impressive!
Thoughts on topic map competitions?
I first saw this in a tweet by Neil Saunders.