I work at a firm that uses large images for all kinds of things, especially with AutoCad.
Took me years to find GIMP, as there are so many free image prog's, but most do not handle large images. Happy I found it.
Here are my main tasks that I would like help on with GIMP:
1) convert a color image to black and white - in a special way. In Corel PP, there is a tool that lets you adjust a threshold slider to determine what pixels go to black and white. It also uses a "lineart" filter that seems to do well with ignoring noise (scattered pixels) at the same time. I am looking for a similar tool that allows control of what goes to black and white.
2) merge an image into another, by pasting the image in, then scaling, rotating, translating to line up with say two points in common. I can do it in several steps, but it would be nice to specify a pt1 from, and pt1 to, then pt2 from and pt2 to. It would handle the three transformations for me and line up the image.
So anything available would be great, or letting me know what API is best for these level tasks would be helpful. I do C# so can dig into that or use the scripting mechanism I noticed.