Re: ColorSync and printing -- Panther (2 of 2)
Re: ColorSync and printing -- Panther (2 of 2)
- Subject: Re: ColorSync and printing -- Panther (2 of 2)
- From: Chris Murphy <email@hidden>
- Date: Fri, 19 Dec 2003 12:30:47 -0700
On Dec 19, 2003, at 9:11 AM, John Fieber wrote:
(Otherwise Photoshop 7, which seems to deposit EVERYTHING into the
print system tagged as Generic RGB regardless of driver settings,
would be utterly incapable of printing accurate color!)
Really? Does this happen when choosing "Same As Source?" Because if so,
this implies a setting of Same As Source in Photoshop provides a source
profile of Generic RGB, and then No Color Adjustment in the driver
would cause that to just get passed through to the OS, which then uses
the 'Current Profile' set in the ColorSync Utility for the
printer/media being used. That would mean a ColorSync conversion is
occurring in this case.
At least with 10.2, Bruce had done a tested these settings ensuring the
same color from OS 9 and OS X drivers, and he did.
But correct printing via a null-transform depends on the USER
knowing/remembering to select driver options that don't lie about the
profile being use. And how is the user supposed to know which driver
options meet that criteria? I sure don't know. The bottom line is
that for a Positive User Experience, the APPLICATION needs unambiguous
control over whether color management happens downstream. As it
stands, that doesn't seem possible.
Yes, absolutely.
The situation may be better for CUPS drivers, but printer vendors are
not exactly falling all over themselves to provide us with CUPS
drivers for commodity inkjet printers.
I think that might have something to do with the current limitations of
the user interface for these drivers, which use PostScript PPD's to
build the interface. So all you really get are pop-up menus. No check
boxes, and no way (yet) to hide advanced features. The latest
prerelease builds of the gimp-print drivers have so many more exposed
features than 90% of the users out there will use, that it would be a
huge disservice to subject users to such an interface. I think once
that gets figured out (and it may already be for all I know), then I
think we'll see better support from printer vendors in this area.
Chris Murphy
Color Remedies (TM)
www.colorremedies.com/realworldcolor
---------------------------------------------------------
Co-author "Real World Color Management"
Published by PeachPit Press (ISBN 0-201-77340-6)
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