09-23-2019, 11:29 PM
Not wanting to rain or your parade, but there are already hundreds of such applications. And who still write UIs in C these days?
Using ImageMagick's compose utility is likely easier than using Gimp for this.
Gimp can also be scripted in Python, which is going to be a lot easier to grasp if you have a C background. You can even use Python to code a UI extension for a plugin.
Script-fu or Python, yes, you can load/scale/position images in Gimp. Plenty of Python plug-in exemples here. Running things in batch mode is a bit different, see here.
Using ImageMagick's compose utility is likely easier than using Gimp for this.
Gimp can also be scripted in Python, which is going to be a lot easier to grasp if you have a C background. You can even use Python to code a UI extension for a plugin.
Script-fu or Python, yes, you can load/scale/position images in Gimp. Plenty of Python plug-in exemples here. Running things in batch mode is a bit different, see here.