I'm on the Qimage mailing list and recently got some mail from the program's author, noting that the latest "Studio Edition" version can used "canned" ICC camera profiles (which he provides for a nominal fee) -- for raw conversions. The e-mail reads in part:
> the latest versions of Qimage Studio Edition have undergone
> major improvements with respect to raw processing, raw photo
> quality, and how Qimage Studio Edition handles raw files, making
> raw processing almost effortless!
I haven't yet upgraded Qimage to this latest "Studio Edition" version and haven't seen its raw-conversion quality. I'd be very interested to know if anyone Out There has tried this approach and if so, how well did it work out? I've used Qimage's editing features only rarely. They seem useful for emergency "repairs" just before printing, but I have never used them to make permanent changes in image files. In my experience Qimage lives up to its claims re: quality of interpolation during printing, especially with its "Pyramid" setting -- and its "smart sharpening" feature works very well. But I haven't ever considered using it as an image editor...