As I'm slowly making progress its time for the next phase. And that is where I have found as small setback.
I have an overworld in a .png format that contains 448 rooms.
They are put in as fowllowing: 28 horizontal, 16 vertical. between the rooms is a 2 pixel border, the border of the map contains 1 pixel at each side. Now I was planning to use a splitting program that I found a long time ago to split this up in to the separate rooms and save them as separate files. The problem is, the program can't handle image parts of this size.
By now I have tried at least 10 other programs, but they also have their problems:
1. they crash the PC
2. they can't handle the .png format.
3. they can't save the images as separate files
4. they can't handle the empty spaces between rooms and around the map
Does anyone have a program that is capable of doing as I want it to be done or am I to separate them myself and spend a lot of hours doing so?