[scribus] Import CMYK colours correcting from SVG/EPS

Clint Alderman calderman at suddenlink.net
Tue Feb 23 20:10:00 CET 2010

Ah! A friend for the journey, thanks!
Hope remains...

Clint Alderman

On 2/23/2010 1:10 PM, John Culleton wrote:
> 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
>>>, 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/
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