[Openicc] Re: Krita... (was color adjusting...)

[PLinnell]

On Monday 13 June 2005 23:05, Boudewijn Rempt wrote:
> (Resent because I meant it go to the list, not just to Peter)
>
> On Monday 13 June 2005 17:09, Jan-Peter Homann wrote:
> > Hello Boudewijn, hello list
> >
> > question to krita colorspaces
> > -------------------
> > As far as I understand, krita is able to manipulate RGB and
> > CMYK-images and other special colorspaces wich are mainly some
> > kind of RGB-derivates.
>
> Well... They attempt to actually simulate the physical properties
> of pigments, following the research by Kubelka and Monk, as
> described by Baxter in his dissertation. Not complete rgb
> derivatives, I think -- there are also substance and substrate
> componets, and in some cases localized gravity, involved.
>
> > Am I right, that the user can open e.g. an CMYK-file, use an
> > embedded profile, manipulate in CMYK-colorspace and save the
> > image with embedded profile ?
> > Can the user  also work in RGB, convert via lcms to cmyk and
> > manipulate the picture in CMYK colorspace ?
>
> Yes, once we get cmyk to work without the bugs that plague us -- I
> nearly had it working in time for the release, only to be called
> away by other bugs. And with all tools and filters Krita has. Yuv,
> is in the works, too -- someone is (or should be) working on that
> right now. Indeed, apart from our bugs, there's nothing to stop the
> user from doing exactly what you describe.
>
> > printing from krita
> > -------------------
> > Some months ago, we had a discussion about using icc-profiles for
> > printing. The gutenprint project plans to integrate in the next
> > release icc-profile support with lcms inside.
>
> I need to investigate that library, then. Does Scribus use
> gutenprint, too? I should investigate...

Scribus has its own EPS, PS and PDF export routines.  If gutenprint 
and CUPS are correctly installed Scribus can directly access the 
settings within its own printer dialog. 

The archives will have an extensive discussion about gutenprint, CUPS 
and printing with icc. 
>
> > standard place for icc-profiles
> > ----------------------------
> > We had an discussion for such place, and Kai Uwe Behrmann already
> > build an installer for standard ICC-profiles:
> >
> >
> > at
> > <http://www.behrmann.name/index.php?option=com_weblinks&task=view
> >&catid=71& id=39> a first version (RPM) can be downloaded. I
> > invite you to reread the included LICENSE file, as packaging work
> > of others is new to me. <<
> >
> > May a fute version of krita can use this place for profiles.
>
> Easy enough.... Done, maybe I'll even make it a config option.

As an FYI, we have it on the list for Scribus to look 
in /usr/share/color/icc and $home/.color/icc for profiles. Hopefully 
for 1.2.2 

Kai has done most of the work of making these installable via tarballs 
with makefiles and rpms. In the next few days, we will have a section 
on our downloads on www.scribus.net for these in distro neutral rpms.

Welcome to the list.

Peter