Re: colorsync & photoshop confusion
Re: colorsync & photoshop confusion
- Subject: Re: colorsync & photoshop confusion
- From: email@hidden
- Date: Mon, 14 Jul 2003 22:18:27 EDT
In a message dated 7/14/03 6:23:15 PM, email@hidden writes:
>
I apologize if this is a silly question, but I have done much web
>
reading on ColorSync & color management, yet I am still confused on
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this one thing (at least for now ;-)).
>
Yes, reading about ColorSync can cause a good deal of confusion... since the
practical stuff is often left out.
>
>
First let's assume that...
>
1) the film scanner gamut is similar to the working space gamut (Adobe
>
RGB)
>
Scanners don't have a gamut, more like a response range...
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2) the working space gamut is larger than the display gamut
>
Which simply means some of your most extreme file colors may not be distinct
on screen...
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3) the display gamut is larger than the printer/paper/ink gamut (for
>
most of the colors)
>
Fair enough... that just means some of the colors you can see won't be
printable as seen.
>
>
Would the following statement be correct?
>
>
When I am altering the colors of an image on my display, the colors I
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see in the image are being directly mapped to my working space colors
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(i.e., Adobe RGB) with ColorSync.
>
Here's where all that ColorSync documentation gets confusing. Its nice that
the OS has color management (and on ocassion, its very important that it
does),
but that doesn't mean that applications necessarily use it. Some ignore it
and run unmanaged, and others supply their own management. If you are in
AdobeRGB, you're in an Adobe application, and ColorSync isn't doing anything
for you,
the Adobe application is doing its own color management, and the settings in
the ColorSync control panel are not being used for anything.
So under those circumstances, when you do visual adjustments to an image on
screen, the eyedropper values you see are for the workingspace, and the colors
you see are adjusted on the fly from the workingspace to the monitor profile
for display. Nothing is being mapped to your workingspace, its already in, or
assumed to be in, a workingspace, and is being mapped from there to the
monitor
for display only.
C. David Tobie
Design Cooperative
email@hidden
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