gmic VS iccloader

its a very powerful gnu tool, very powerful. Good thing, if something doesnt work with the result u want, you can write ur own just need to know a little bit of C and math! very pog, very gnu.

With a plugin, GMIC you can also produce the average layer, so that spares you setting all the opacities. You still have to load them in Gimp (not too likely to have hem all fit and display). You can also use GMIC directly in a command line (but again, a command line with 75000 files is not obvious, so you may also have to divide and conquer).

Whatever Software you use (GIMP / Krita / Photoshop / Affinity) you can download a plugin called G'MIC (Free Software), once installed, it should be in the "Filters" list.

I use the free and open source G'MIC plugin for Gimp (they have a standalone version as well) to create LUT profiles for my lenses and cameras among other effects, I noticed that mame also works with LUTs (here and here), however the feature is not well documented, I'm failing to find a basic step by step guide to make something useful out of it.

the G'MIC plugin is over there > https://gmic.eu

If you don't have the G'MIC plug-in, it's over-there > https://gmic.eu , restart GIMP after G'MIC installation)

IIRC here is also something like this in the GMIC filter suite.

There are 2 plug-ins to have whatever you think about plug-in... It's the Resynthesizer plug-in (Photoshop's content-aware is alike it), and G'MIC for its capacity to work on multiple layers at once and some really good filters as well as some 3D objects in it. (and if you have to use the "Style" from Photoshop, I would recommend the different GEGL filters from LinuxBeaver...)

There's something to say about where it fits in someone's artistic toolset. Feels like an extensive image computation tool suite, with no lablel or help toolbox for its functions. Like G'IMC, but without its helpful dropdown menu of functions, just a text input area instead. Sure, it still can do a lot. But it's not for everybody, I suppose. (Btw, aforementioned toolsuit does everything I need in tandem with Stable Diffusion. It's awesome. I'll ask them if I can write a slice function with sizes in pixels instead of numbers of slices.)

Which GIMP are you using? snap, flatpak, PPA, ...? Was G'MIC from the original website https://gmic.eu ? or somewhere else? Which G'MIC version? Why not using GIMP 2.10.32, instead of 2.1030? Which Filter in G'MIC are you using?

Combining Vala and C files in a project: https://github.com/stefantalpalaru/iccloader/blob/master/Makefile.am

Once upon a time, I wrote a "systray widget used to load ICC color profiles with different color temperatures, either on demand or automatically based on the sun's position" in Vala: https://github.com/stefantalpalaru/iccloader

And, since there's nothing programmers love more than building new tools, a "Vala project skeleton using Autotools": https://github.com/stefantalpalaru/vala-skeleton-autotools