04-23-2023, 04:34 PM
@David, it is worth investigating. A test with my large tif image, open in Gimp 2.10.34 and precision upped to 16 bit. Size in Gimp now 1.3 GB
Make a fuzzy selection / selection to channel / mask from channel / invert colour. Takes a minute here. My kubuntu 20.04 laptop / i5-8core / 16 GB memory. (ie. nothing special)
https://i.imgur.com/hhaPTTp.mp4
I only wish I could offer some suggestions but I do not have any. If you run Gimp with the Dashboard dock open does that show anything ?
Make a fuzzy selection / selection to channel / mask from channel / invert colour. Takes a minute here. My kubuntu 20.04 laptop / i5-8core / 16 GB memory. (ie. nothing special)
https://i.imgur.com/hhaPTTp.mp4
I only wish I could offer some suggestions but I do not have any. If you run Gimp with the Dashboard dock open does that show anything ?