ProfileMaker Chroma Colorful and Asian skin color.

[Hermie]

No really this is not a joke, just wondering if anyone has seen this before:

I created profiles for Agfa D-Lab2 and Durst Theta with ProfileMaker.

For testing purposes when using ProfileMaker, I always initially create different profile versions for each gammut mapping method that can be incorporated in perceptual rendering intent (Chroma Colorful/ProfileMaker 5 algorithm, Chroma Plus/ProfileMaker 4 algorithm and Chroma Classic/ProfileMaker 3 algorithm).

The versions created with Colorful for both printers show a slight magenta cast in Asian skin color when using perceptual. This is very obvious when using the Getty test image and focussing on the Asian lady in the middle. Relative colorimetric intent doesn't show this cast.

Anyone seen this before?

Herman

[digitaldog]

I use Colorful by default, never saw an issue. Try a different image too (I hate that test image).  

What illuminant are you viewing the prints under?

[Hermie]

> What illuminant are you viewing the prints under?

Solux.

I didn't print on the Theta yet, only soft proof, but I noticed this in prints and soft proof from D-Lab, also in my own images that contain this type of skin color.

Herman

[colourperfect]

Perhaps you could try rel. col rendering. I sometimes find that Perceptual rendering and its editing colorspace to print space color transformation cause problems with red hair and some skin tones.

Ian

http://profiles.colourperfect.co.uk

[Hermie]

> Perhaps you could try rel. col rendering.

Not an option in this case.

This lab has color management integrated throughout its workflow. Everything that doesn't have one of their profiles embedded, is perceptually converted to their printer profile. They created a custom solution for this using LittleCMS.

We're trying MonacoProfiler now. I've always had a preference for their perceptual intent.

This is the response I got on Chromix forum:

"Yes, IMO PMP puts too much magenta into the skin tones with all of their perceptual rendering methods. Chroma is the worst and adds unwanted contrast as well. I hear photolabs complaining the most about unnatural, pink skin tones. MonacoProfiler's profiling technology is the best kept secret particularly for photolabs. With MP profiles you'll see better skin tones, better and cleaner shadow detail and cleaner solid primary and secondary colors. MPs Perceptual rending is fantastic and you see a better match across a variety of print devices (especially photo paper printers). "
http://www.colorforums.com/viewtopic.php?t=519

Herman