Does gimp have optical filter imitations?

[godek]

(12-12-2017, 09:46 AM)Ofnuts Wrote: Banding is color bands appearing in an area with a soft color change:, such a pale blue sky. Applying color filters leads to a reduction (sometimes rather dramatic) of the number of colors,so you get the same effect as Color>Posterize in random places.

Seems like the best option is to do the optical filters instead of the digital ones? What if you are doing it in 16bit same deal? Does photoshop have this problem?

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(12-12-2017, 12:36 PM)rich2005 Wrote:

(12-11-2017, 11:40 PM)godek Wrote: I noticed that gmic has plugins for krita too. I know you can edit 16bit in that program but can it be a raw file also? Maybe krita is the better options guys?? I prefer to use gimp afterwards though.

I am using manjaro lxde linux fully rolling release distribution of linux.

2. Gimp
You could try the development version Gimp 2.9.7 as a portable linux 'appimage'
This one might (stress might) work 
https://github.com/aferrero2707/gimp-app...4.AppImage (big download 180 MB -ish)
Make it executable, run it from your home partition.
If it does work, it already has the nufraw plugin installed which will open as 16 bit when enabled. https://i.imgur.com/xvXB720.jpg
What it does not support is gimp_gmic but after a bit of tweaking there is always the option to export as a 16 bit tiff. https://i.imgur.com/UKzEEyR.jpg

My distribution of linux(manjaro) has an option to install unstable packages they are usually in the AUR repo. I was able to find gimp 2.99 and I installed it but I have to open it via terminal since other wise it will open gimp 2.8 which I also have installed.