While the registry is obviously about the plug-in authors, I figured some of you might wonder who's running this thing. So, my name is Ingo Lütkebohle, I'm currently a PhD student in robotics and I've been running the registry, in one form or the other, since 1996 when I was working as a software developer and network engineer. Together with a couple of friends, I still run a server and so can provide a place for the registry to live (which I will do as long as I can and people want me to, so for quite some years to come, probably ;-). I still use The GIMP regularly and now do computer vision for work -- my interest in that is in no small part due to my earlier experiences with the GIMP, so I still have a sweet spot for this tool. I hope you enjoy the Registry!
The Unidentified Flying Raw (UFRaw) is a utility to read and manipulate raw images from digital cameras. It can be used on its own or as a Gimp plug-in. It reads raw images using Dave Coffin's raw conversion utility - DCRaw. UFRaw supports color management workflow based on Little CMS, allowing the user to apply ICC color profiles. For Nikon users UFRaw has the advantage that it can read the camera's tone curves. Even if you don't own a Nikon, you can still apply a Nikon curve to your images.
pfstools package is a set of command line (and one GUI) programs for reading, writing, manipulating and viewing high-dynamic range (HDR) images and video frames. All programs in the package exchange data using unix pipes and a simple generic HDR image format (pfs). The concept of the pfstools is similar to netpbm package for low-dynamic range images.
Digital cameras are cool. So is GPS. And, EXIF tags are really cool too. What happens when you merge the three? You end up with a set of photos taken with a digital camera that are "stamped" with the location at which they were taken.