GIMP Version: 2.8.14
Operating System: Windows
OS Version: 7
GIMP Experience: New User

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I am doing several trials with different Cmyk converters and got various results though using the same .Icc color settings.
I was saddened to see that psd got seemingly the least color shift (mainly in the blue color) and would like to know if I can improve on my settings in Gimp to get a little less color shift.
(For info the "online" file has been done with an online Cmyk converter): for that one I got the worst result, specially in the greens.
Any tips?

Comparisons, always a bit dubious, you show your comparison and I will show mine Worth trying other applications, especially Krita and Imagemagick.



You did not say, (edit: You did say, but worth checking anyway) but are all the parameters the same and what are they? Worth checking using ImageMagick identify -verbose

The above, conversions all from sRGB to ISO coated V2 and perceptual, although PS is little dubious with ISO coated (PS = Euroscale V2???)

Looks ok to me but at the moment using a linux laptop (Kubuntu 16.04) with very little colour management.

For info, the web conversion rgb2cmyk.com uses GraphicksMagick.

Subjectively, I think the ImageMagick conversion is closest to the original RGB.



In the end, largely irrelevant, CMYK is for the printing company and they will screw it up anyway.

edit: Looking at your last post, very artistic, Krita might be a good choice since you can start a project in CMYK mode. No need for a conversion.

Hi Rich,
Thanks for this post, very clear and informative
I will check Krita and IM, sounds interesting!
What do u mean with "In the end, largely irrelevant, CMYK is for the printing company and they will screw it up anyway."?
Did u had bad experience in the past with printing companies (I did I must say ;-)