Re: [Gimp-user] HELP Color error using cmyk

[Robert Krawitz <rlk alum mit edu>]

On Tue, 02 Jul 2019 14:38:49 +0200, rich404 wrote:
> > I can see the problem.
> >
> > No solution that I can see. Post a bug report at
> >
> > https://gitlab.gnome.org/GNOME/gimp/issues/

It's not a bug -- there's no way to reconstruct the missing
information after it has been transformed from four down to three
dimensions.

> Not only Gimp
>
> A little bit digging and the change in values also happens with online
> convertors. I tried a couple, both the same.
>
> CMY(k) 34 37 56 00  
>
> converts to RGB 168 161 112 
>
> converts back to CMYK 0 5 33 34 
>
> The only suggestion is use Krita and start off in CMYK colorspace. The color
> picker there keeps the original values.

Yep.  Once you've transformed from CMYK to RGB you've irretrievably
lost that extra information.
-- 
Robert Krawitz                                     <rlk alum mit edu>

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