Re: Colorconfiguration for Apple Apps / Tiger
Re: Colorconfiguration for Apple Apps / Tiger
- Subject: Re: Colorconfiguration for Apple Apps / Tiger
- From: Erik Koldenhof <email@hidden>
- Date: Thu, 15 Sep 2005 14:32:29 +0200
Jan-Peter,
As you problably know, Tiger changed everything on ColorSync handling.
Because the ColorSync preferences are no longer there, everything is
set to 'Generic' profiles when no embedded profiles are available,
and it cannot be changed.
I even tried to change the default profiles to better standards via
Applescript and Terminal scripts, but the defaults are gone i'm affraid.
One other issue in Tiger is the lack of ICC v4 support, which Apple
did support before Tiger.
Just check the ICC v4 testpage on www.color.org and you'll see.
The only thing you can/should do at this time, is to try to actually
embed a real profile into the image.
Preview app runs via ColorSync as well, and still can handle PDF/X-3
color info more or less OK, but I believe PDF/X-1a is also handled
via the 'default' profiles...
iPhoto now accepts embedded profiles, but converts the image towards
'GenericRGB' when you edit the file (rotating, color corrections, etc).
So, there are some serious issues with Tiger still, I'm sure we
haven't found them all yet...
Erik Koldenhof
On 15-sep-2005, at 13:20, Jan-Peter Homann wrote:
Hello list
I´m searching for detailed technical informations, how Tiger and
the Apple own applications are handling untagged colordata.
This concerns especialy:
- preview
- safari
- color handling during printing
- color handling during PDF-Export via the printing dialogue
Is it right, that for all this applications / tasks, Tiger is
assigning the profiles defaultRGB.icc and defaultCMYK.icc from
System/Library/Colorsync/Profiles ?
For several clients, I´m searching for a solution, to make the
handling of untagged colordata conform to actual recommendationd
from ISO / IEC / W3C
For RGB: assign sRGB
For CMYK: assign SWOP (US) or ISOcoated (Europe)
Is there any transparent, easy and stable solution to reach this
goal ?
Thanks for all help
:-) Jan-Peter
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