Re: PrintOpen RGB Profiles
Re: PrintOpen RGB Profiles
- Subject: Re: PrintOpen RGB Profiles
- From: email@hidden (Bruce Fraser)
- Date: Fri, 7 Sep 2001 22:57:06 -0700
At 6:58 AM +0200 9/8/01, Henrik Holmegaard wrote:
The point here is that when you have a printer that only accepts
data through the QuickDraw or GDI printing pipeline, you can't
sample all the secondary and tertiary CMYK combinations. It makes no
sense at all to have something as complex as the IT8.7-3 with 900
patches for a printing pipeline that doesn't even accept CMYK.
It certainly makes no sense to use an IT8.7/3 on an RGB printer, but
that wasn't the question. Obviously you can't sample all the
secondary and tertiary CMYK combinations -- you don't even know if
you can print them!
But they really do profile quite nicely as RGB devices. Profiling is
pretty much a matter of sending a set of well-chosen stimuli to the
printer, then measuring the response. More patches may not be the
answer, though -- the Heidelberg folks seem to have the same attitude
towards RGB profiling as you do. I've never been able to get
PrintOpen to make a good RGB profile. ProfileMaker does very well
with the 288-patch target.
People are trying to use all sorts of stuff for publishing
workflows, much of it with so many limitations it is like jumping
through hoops backwards. Or more specifically like rasterizing full
QuarkXPress EPS pages in Photoshop on poor Gertie the G3 with a
brain volume of only 384Mb RAM -:).
While it's not fun, I'd take it any day over trying to color-manage a
3-year old Fiery RIP...
Bruce
--
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