RE: Photoshop 6 - Image specific color - Working Space
RE: Photoshop 6 - Image specific color - Working Space
- Subject: RE: Photoshop 6 - Image specific color - Working Space
- From: "Fred Bunting" <email@hidden>
- Date: Thu, 3 May 2001 18:22:01 -0700
- Thread-topic: RE: Photoshop 6 - Image specific color - Working Space
Scott Griswald wrote:
>
Personally I think calling it "Default Working Space" would
>
have made more
>
sense to separate the idea of the embedded profile vs. the
>
fallback (color
>
settings-default) working space.
Whether you could call it a 'Default Working Space' depends a bit on the
color management "policies" you've chosen in Color Settings.
If you choose 'Preserve Embedded Profiles', then, yes, the RGB Working
Space acts merely like a 'Default' for new documents and opened files
that are untagged, and each image that already has an embedded profile
could be thought of as maintaining its own individual 'Working Space.'
But if you choose 'Convert to Working RGB', the RGB Working Space is not
just A 'Default' Working Space, it is *The* Working Space. I.e. if you
use PS6 like PS5, then the PS5 terminology is still appropriate.
>
As long as we understand that "profile" and "working space" are
>
interchangeable terms then it should all make sense.
Technically, these are different terms. A 'working space' is a color
space. A 'profile' describes a conversion *between* two color spaces.
Specifically it defines the conversion between one color space, and the
profile connection space (PCS). However, in many contexts, yes, the two
terms are essentially interchangeable, as a 'working space' is defined
by the 'profile' used to convert colors into or out of it.
So I may just be making a pedantic distinction. But I caution newcomers
trying to understand how profiles work together not to think that the
word 'profile' is synonymous with the term 'working space' (or 'color
space'). Furthermore, somehow I think that the blurring of the line
between 'working space' and 'profile', can lead to sloppy thinking.
E.g., it's now too easy to think that *any* profile can or should be
used as a working space. Which leads me to ...
shAf [Michael Shaffer] wrote:
>
Many do separate the 2 terms ... reserving "profiles"
>
for those color
>
spaces which are device dependent ... whereas "working spaces" are
>
created specifically to be gray balanced and perceptually uniform
>
(which most device profiles are not).
Yes, this is closer to the distinction I would make. A 'working space'
used to be a color space used for a certain purpose (editing image data)
because it had certain properties (e.g. gray balance ... but not
perceptual uniformity). But now, this distinction has been blurred a
bit by Adobe by letting people choose any device-dependent space
represented by a profile as a Working Space, in fact as *The* Working
Space.
Just steppin out of lurk to toss a two-cents <g>,
Fred Bunting
>
-----Original Message-----
>
From: Scott Griswold [mailto:email@hidden]
>
Sent: Tuesday, May 01, 2001 7:05 AM
>
To: email@hidden
>
Subject: Re: Photoshop 6 - Image specific color - Working Space
>
>
>
I like to think of the "working Space" that you set in the
>
color settings as
>
the "Default Working Space" because the profiles that are embedded in
>
images are also "working spaces." If you open an image with a tagged
>
profile, the "Default Working Space" is ignored and your
>
embedded profile
>
becomes your "working space."
>
>
Personally I think calling it "Default Working Space" would
>
have made more
>
sense to separate the idea of the embedded profile vs. the
>
fallback (color
>
settings-default) working space.
>
>
As long as we understand that "profile" and "working space" are
>
interchangeable terms then it should all make sense.
>
>
-Scott Griswold
>
Ulsaker Studio Inc.
>
>
> From: "G. Domm" <email@hidden>
>
>
> The question is - If the above is true WHAT WORKING SPACE
>
are you now REALLY
>
> working in as you continue to work on this image - which is
>
now NOT being
>
> displayed in accordance with the Working Space chosen in
>
Color Settings -
>
> and is apparently now responding, instead, to the embedded
>
profile which
>
> could have a smaller color gamut than your chosen Working Space?
>
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