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+---- Thread: migrating 2.8 bash scripts to gimp 3 (/Thread-migrating-2-8-bash-scripts-to-gimp-3)
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RE: migrating 2.8 bash scripts to gimp 3 - vince - 03-10-2026
(03-10-2026, 07:49 AM)MrsP-from-C Wrote: Looks like it's a GEGL Operation now:
https://gegl.org/operations/gegl-color-to-alpha.html
No idea how to handle those in script-fu.
But you'll find examples for similar procedures in clothify.scm, if you search for gegl:
Thanks for your advice,
V.
Quite in a hurry at work, I definitely must give up the initial idea to update my numerous scripts to gimp 3.
For the record, and maybe could it be helpful to someone else, I lazily opt to run them on a gimp 2.10 Appimage (picked from here)
Code:
/opt/gimp-2.10/gimp-2-10-38-overlay-py2-mm-v2.AppImage -i -b \
"(\
let* (\
(image (car (file-png-load 0 \"input.png\" \"input.png\")))\
(drawable (car (gimp-image-get-active-drawable image)))
)\
(gimp-drawable-desaturate drawable 0)\
(gimp-drawable-invert drawable 0)\
(plug-in-colortoalpha 1 image drawable '(0 0 0))\
(gimp-file-save 1 image drawable \"output.png\" \"output.png\")\
(gimp-quit 0)\
)" 2 > /dev/nullThank you all for your commitment,
Vince.