Digital BW, The Print

David,

Thank you for all the good info on ICC standards and profiling. Sounds like
Seybold might want to consider the idea of a standard for profiling
grayscale ink sets. I understand the problem and I guess profiling a
grayscale inks are more akin to the offset printing technology of quality
quadtone printing. I have to feel that the technology is there if someone or
group wants to devote the time to it.

I still find it fascinating that in the digital world there has been this
complete reversal between Color and B&W, and that quality B&W printing is so
much more difficult than Color printing.

Martin Wesley

http://www.borderless-photos.de/guests.html



----- Original Message -----
From: <CDTobie@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Wednesday, September 04, 2002 5:40 AM
Subject: Re: [Digital BW] Re: ImagePrint and Custom Profiles


>
> In a message dated 9/3/02 5:59:46 PM, mwesley250@... writes:
>
> >I'm meeting with
> >a few
> > companies next week at Seybold that make profile software and on the
> >top
> >of
> > my list is the ability to make a true grayscale profile.
>
> The problem is that, like a CMYK profile, a Gray profile is a device
> description. If that device is using Small Gamut CMYK inks, then a
standard
> RGB or CMYK profile can do a good job defining the device, depending on
what
> profiling package is used. For devices running various neutral gray inks,
or
> a few of those and one or two toned inks for tonal adjustments, the
current
> methods of conversion to these colors is currently done by transfer curves
> and other non-ICC processes. The idea that simply creating an ICC  Gray
> profile will somehow automatically address such systems is impractical,
> unless the ICC process were to be moved forward to an n-channnel system
with
> very sophistocated channel interactions.
>
> What would actually be needed would be driver or RIP controls for several
> grays, similar to the current light and dark C&M controls in some RIPS, as
> well as seperate tonal controls for any toning colors, and linearization
ramp
> targets and input to define these controls. Unless a standard system was
> chosen, and ICC standards for defining the process developed, this could
not
> be turned into something universal like a gray profile.
>
> C. David Tobie
> Design Cooperative
> CDTobie@...
>
>
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