My B&W processing application is progressing quite nicely. Loading/saving/importing/exporting works, and querying image pixels, which is very important, is now also possible. A histogram is still missing, though.
What’s really bugging me at this point is that the image processing is way too slow for interactive use, and I haven’t even implemented dodging and burning, yet. What I’m trying to do now is to see how fast I can implement the image processing by hand in C and in C#. Maybe the managed code implementation is fast enough, which would be wonderful, because then the whole application would have no requirements apart from Mono. We’ll see.