Re: Can user switch off Display color management?
Re: Can user switch off Display color management?
- Subject: Re: Can user switch off Display color management?
- From: "Dan Reid" <email@hidden>
- Date: Fri, 27 Sep 2002 17:58:28 -0600
On Sat, 21 Sep 2002 00:59:22 -0600, Chris Murphy <email@hidden>
wrote:
>
On Friday, September 20, 2002, at 11:01 PM, Steve Rothman
>
<email@hidden> wrote:
>
>
> At 12:54 PM -0600 9/20/02, Chris Murphy wrote:
>
>> If the source and destination are the same, there is no transform.
>
>> You can do this in Photoshop by going to View:Proof Setup:Monitor
>
>> RGB.
>
>
>
> Interesting! Is there a way for the user to do it at the Mac OS X
>
> level, rather than in Photoshop?
>
>
For color managed apps, it must be done in each app. For OS X apps,
>
like Preview, then you just need to make sure that the embedded profile
>
in a document is the same as the display profile, then no transform
>
will occur.
>
>
bruce fraser <email@hidden> writes:
>
>
>
> System Preferences>ColorSync>Document Profiles>RGB Default>Monitor
>
> RGB will send untagged RGB straight to the screen. (All files are
>
> untagged to CMS-unaware apps.)
>
>
I think anything untagged is considered to be monitor RGB and thus gets
>
a null transform. I have a test image with no embedded profile (it's a
>
TIFF), and when I drop it on Preview I see the same thing no matter
>
what I set as the RGB Default in the ColorSync panel. This is odd
>
considering what the description in the Default Profiles tab says:
>
>
Use this panel to specify default profiles for each color space to be
>
used when a document does not contain embedded profiles.
>
>
This implies these settings affect the display of documents that don't
>
contain embedded profiles - but at least in my case these settings
>
aren't doing that for either RGB or CMYK in Preview. It definitely sees
>
embedded profiles though.
>
>
Chris Murphy
This is how it works in 10.1 but not in 10.2 (Jaguar)
Now the assumption is based on your default RGB profile and not the system
profile.
10.2 did away with the system profile thing all together and now only allows
you to designate your monitor profile in the display control panel (system
preferences) or the Colorsync Utility app.
In any event, assumption for untagged RGB objects is the RGB default profile
in the ColorSync control panel.
The nitty gritty updated for 10.2 (at the bottom)
http://developer.apple.com/technotes/tn/tn2035.html
--
Dan B. Reid
RENAISSANCE PHOTOGRAPHIC IMAGING
http://www.rpimaging.com | email@hidden
Toll Free: (866) RGB-CMYK
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