Re: PSO Coated v3 separations
Re: PSO Coated v3 separations
- Subject: Re: PSO Coated v3 separations
- From: Andreas Kraushaar <email@hidden>
- Date: Sat, 25 Aug 2018 12:58:37 +0200
thanks :-)
FOGRA52 indeed is quite a special printing condition and the higher the
differences between printing conditions (both in gamut shape and size) the
bigger the challenges. I understand that people expect and easy exchange
between any printing conditions but there are some restrictions ...
regards
Andy
Wir stellen den Hintergrund in den Vordergrund.
We put the background in the foreground.
—————————————————————————
Dr.-Ing. Andreas Kraushaar
Abt. Vorstufentechnik
Fogra
Forschungsinstitut für Medientechnologien e.V.
Einsteinring 1a
85609 Aschheim b. München
Telefon: +49 89. 431 82 - 335
Telefax: +49 89. 431 82 - 100
E-mail: email@hidden
Internet: www.fogra.org
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Geschäftsführer: Dr. Eduard Neufeld | Sitz des Vereins: Aschheim b. München |
Vereinsregister 4909
> Am 22.08.2018 um 23:11 schrieb Mike Strickler <email@hidden>:
>
> Andy: I also know of at least one profiling applicaion that includes a
> “flavor” of perceptual rendering for device links that does a very deft job
> of scaling values close to the white point. I was referring to perceptual
> tables built into most ouput profiles. These might not always produce a
> convincing result. In any event, what is clear is that Fogra is not to blame
> for the paper color, and thus for the characterization.
>
> Mike
>
> Subject: Re: PSO Coated v3 separations
> From: Andreas Kraushaar <email@hidden <mailto:email@hidden>>
> Date: Wed, 22 Aug 2018 22:00:41 +0200
> smtp.mailfrom=email@hidden <mailto:email@hidden>; dmarc=none
> Hi Martin, all,
>
> this is a „problem“ or a „feature" with ICC based white point scaling
> (required
> for colorimetrical encoding of data). Rendering neutrals from ab=0,0 to ab=2,5
> -10 is quite a change and XYZ-scaling from black to white does not reflect the
> required XYZ to be printed to actually get a decent print. The solution would
> be to use a perceptual rendering intent that does a grey mapping close to
> ab=0,0 and not to what XYZ scaling predicts.
> I know many color server device link profiles (F39 - F52 and also ECI-RGB to
> F52) that does this job.
>
> regards
> Andy Kraushaar
>
> PS: So please believe me that the people that doing this huge (unpaid) efforts
> also do check the separation, yes!
>
> Wir stellen den Hintergrund in den Vordergrund.
> We put the background in the foreground.
>
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