[scribus] Import CMYK colours correcting from SVG/EPS

[Clint Alderman]

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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