Re: gcm with Gimp, EOG, Darktable & Co

[Florian Neukirchen <riannek web de>]

Yes, it's a Laptop display. On my external monitor, GIMP and Darktable
eather fail to pick up the profile or it is very subtle, there is no
visible change. 

Thanks,
Florian 


Am Donnerstag, den 19.04.2012, 00:04 +0200 schrieb Pascal de Bruijn:
> On Wed, Apr 18, 2012 at 9:14 PM, Florian Neukirchen <riannek web de> wrote:
> > Hi,
> >
> > I am trying to figure out how to get gnome-color-manager (on fedora 16 /
> > gnome 3.4) to work together with graphics applications. I stumbled over
> > a mail by Øyvind Kolås, saying the opposite of every other website I've
> > read (e.g. http://blog.pcode.nl/2012/01/29/color-management-on-linux/).
> >
> > "you most likely are better off working directly in sRGB in GIMP with
> > color management disabled. Letting colord / gnome-color-manager or
> > similar do it's job of adjusting sRGB according to your displays
> > profile. Having both global color correction and GIMP's display filter
> > would lead to double correction and thus incorrect results."
> >
> > https://mail.gnome.org/archives/gimp-developer-list/2012-April/msg00108.html
> >
> > The point is, with the profile I created with gnome-color-manager, I get
> > a decent result (comparing screen with test images) as long as "use
> > system profile" is switched off in GIMP 2.6 / Darktable 1.0. However,
> > with EOG 3.2, grey darker as 20 % already looks black, making EOG
> > useless. The same happens with GIMP and Darktable using the system
> > profile.
> 
> Is this by any chance on a laptop display? Since I've seen similar
> things happen. I haven't been able to properly research this.
> 
> This may actually be an Argyll issue, but I haven't really double checked that.
> 
> I've attached a patch for GCM which could possibly help as a
> workaround. However I didn't submit it to hughsie yet, because I
> haven't extensively tested it yet.
> 
> Regards,
> Pascal de Bruijn