[scribus] Import CMYK colours correcting from SVG/EPS

[John Culleton]

On Tuesday 23 February 2010 13:40:46 Clint Alderman wrote:
> I've had the same issue of different percentages between CorelDraw,
> Xara, Inkscape, OpenOffice, and Scribus on the "same color."
> Achieving color consistency between apps along with the fabled monitor
> calibration is more like a Hobbit's journey to Mordor.
>  From what I've read it is achievable... with many hazards along the way
> if not done wisely.
>
> Still seeking wisdom on all this, but worn out from trying.
>
> Clint Alderman
>
> On 2/23/2010 12:17 PM, Julian Robbins wrote:
> > On 23/02/10 17:44, Gregory Pittman wrote:
> >> On 02/23/2010 08:19 AM, Julian Robbins wrote:
> >>> Hi
> >>>
> >>> We've had some fund and games !!
> >>>
> >>> Not directly related to Scribus, but something I only found out about
> >>> recently is that SVG files only support RGB colourspace not CMYK.
> >>> Because of this, if using Inkscape, and saving in normal SVG format any
> >>> CMYK colours are saved into RGB equivalent. If I have a CMYK colour I
> >>> export as EPS from Inkscape, it too oddly won't save as CMYK, as
> >>> Inkscape still doesn't support this
> >>> https://bugs.launchpad.net/inkscape/+bug/171214
> >>>
> >>> Now what's all this got to do with Scribus ?
> >>>
> >>> Well although the colours themselves when you import these various
> >>> files ie SVG, and EPS are ok, the CMYK colour values aren't correct as
> >>> you expect.
> >>>
> >>> But after creating same files in Illustrator, and saving .ai, .svg and
> >>> .eps files, I would expect the .eps at least to show the correct CMYK
> >>> values on import into Scribus (using 1.3.6SVN), but it doesn't either.
> >>> The colour is more or less the same, but the CMYK values vary wildly.
> >>>
> >>> Loading up the .ai file into Inkscape also doesn't show the right CMYK
> >>> values, similar colour match but wrong values.
> >>>
> >>> Am I looking at this the wrong way, but how do people using a complete
> >>> FOSS system actually get a a fully correct workflow with CMYK using
> >>> Scribus, etc ?
> >>>
> >>> Also, can you get the same actual CMYK colour using a different
> >>> combination of values of Cyan, Magenta, Yellow and Black ? If so,
> >>> perhaps this is what's happening - same colour, but different
> >>> (incorrect) make up to achieve it ?
> >>
> >> So when you "correct" colors, try to understand the subjective nature
> >> of this.
> >
> > Hi Greg
> >
> > I take your point, but one part of my query was why doesn't Scribus show
> > the same CMYK values for a colour saved as an EPS file from Illustrator
> > than what Illustrator does ?
> >
> > I have a file with Pantone 575CVC green, which is CMYK 60%, 9%, 95%, 50%
> > as created in Illustrator (used as Inkscape can't accurately save CMYK
> > values into an svg or eps file).
> >
> > But when I import the Illustrator eps file into Scribus 1.3.6SVN (or
> > 1.3.3.13), the colour although closely matching in tone what was created
> > as the eps, has CMYK values 76%, 36%, 100%, 27%
> >
> > So why aren't the values the same as what's in the Illustrator eps file ?
>
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I start out with Galaxy Gauge's Color map Pro to get close to what I want.  
This marvelous document is printed on heavy stock and coated, so that what you 
see is likely very close to what you get. Then with no document active I go to 
edit->preferences and set my cmyk palette to Scribus Open Office.  I create a 
"new" color, give it a name, and use the values from the above referenced 
Color map Pro to describe the color. 

Galaxy Gauge has wonderful publishing products at very low prices: 
http://www.galaxygauge.com/

 
-- 
John Culleton
"Create Book Covers with Scribus"
Printable E-book 38 pages $5.95
http://www.booklocker.com/books/4055.html
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