my question is in the subject: what does g’mic do if I use it with photos that are not in sRGB but larger color spaces such as prophot or adobergb? as far as I know, I can start the plug-in-version from Krita which supports large color spaces.
I could not find any info about this in the internet.
does it automatically convert everything to srgb?
thanks in advance
G’mic doesn’t care about colour spaces, it just looks at the numbers.
While @Tobias is correct on one level, many non-builtin G’MIC commands (builtin are denoted by “
(+)”), and almost all of the GUI filters, assume that your input files are sRGB or at least RGB (which in fact are sRGB linear) in the [0,255] range. When in doubt, refer to
Or simply keep it in regular sRGB or linear sRGB and between 0-255.
That said, it is possible for you to write your own colour conversion commands. @David_Tschumperle has exposed the existing colour conversion commands in
gmic_stdlib.gmic to demonstrate how it could be done. You just need the right mathematics for your particular set of conversions.
That’s a hard way to go about it. Why can’t ICC profiles be used instead ?