What is the version specified in header of GIMP app? e.g. 1.0 or 2.0

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When I open the single channel mask image in GIMP, I am seeing some sort of version specified in header as:

enter image description here

I am on ubuntu linux and see this value change during my 2 different mask files. One of them says 1.0, while other one says 2.0.

Any idea?

gimp computer-vision image-processing
1 Answers

It is not a version. It is actually the image object ID in Gimp, followed by a Display sequence number. For instance in this setup:

enter image description here

You see that

  • Image1 (the one with a "1" drawn in it) has id 3
  • Image3 (the one with a "3" drawn in it) has id 4
  • Image2 (the one with a "2" drawn in it) has id 2
  • Image2 has two views, which is why one view is 2.0 while the other is 2.1.

Image IDs are allocated in sequence starting from 1 (yes, I loaded and closed another image before doing the screenshot). Display sequence numbers are a sequence for the image different from the Display object ID.

When you code in script-fu, you handle the image IDs directly,but when you use python-fu (as I did) this ID is a mere attribute of the gimp.Image object and you almost never use it. Normally your code cannot interact with displays it did not create itself (using gimp.Display(image)).

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