Color Profile vs Work Space

D
Posted By
Dave
Sep 25, 2005
Views
288
Replies
2
Status
Closed
Original CS2 was setup with the defaul ‘North America General Purpose2’ setting which brought ‘sRGB’ as the working space. I have changed the color setting to ‘North America Prepress 2’ which on its turn, made Adobe RGB (1998) the working space.

Now, if a photo is opened, the warning get displayed, telling that this has an embedded color profile and does not match, with the well known3 alternatives:
1. use original
2. convert
3. discard

Am I right to asume that I can convert without a second thought about it? And where did it get the profile from which it is embedded in?

after thought:
a wel known wise man once said something to the effect of: If you ask, you are dumb.
If you don’t ask, you stay dumb.

Dave
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color profile space vs work

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N
nomail
Sep 25, 2005
DD wrote:

Original CS2 was setup with the defaul ‘North America General Purpose2’ setting which brought ‘sRGB’ as the working space. I have changed the color setting to ‘North America Prepress 2’ which on its turn, made Adobe RGB (1998) the working space.
Now, if a photo is opened, the warning get displayed, telling that this has an embedded color profile and does not match, with the well known3 alternatives:
1. use original
2. convert
3. discard

Am I right to asume that I can convert without a second thought about it?

Usually it is better not to convert, but to keep the profile (option 1). Conversion from one color space to another always gives some small losses, so only do that if you have a good reason for it. The fact that your DEFAULT color space happens to be AdobeRGB is hardly a good reason by itself.

And where did it get the profile from which it is
embedded in?

When the file was written to disk, it was in a certain color space (and apparently that was NOT AdobeRGB, but something else). That profile was tagged to the file at the time of writing. You may not realise this, but profiles and color spaces are the same. AdobeRGB is a color space, the AdobeRG profile describes this collor space.

—
Johan W. Elzenga johan<<at>>johanfoto.nl Editor / Photographer http://www.johanfoto.nl/
D
Dave
Sep 25, 2005
On Sun, 25 Sep 2005 21:44:37 +0200, (Johan W.
Elzenga) wrote:

DD wrote:

Original CS2 was setup with the defaul ‘North America General Purpose2’ setting which brought ‘sRGB’ as the working space. I have changed the color setting to ‘North America Prepress 2’ which on its turn, made Adobe RGB (1998) the working space.
Now, if a photo is opened, the warning get displayed, telling that this has an embedded color profile and does not match, with the well known3 alternatives:
1. use original
2. convert
3. discard

Am I right to asume that I can convert without a second thought about it?

Usually it is better not to convert, but to keep the profile (option 1). Conversion from one color space to another always gives some small losses, so only do that if you have a good reason for it. The fact that your DEFAULT color space happens to be AdobeRGB is hardly a good reason by itself.

Thanks. I do make sense when you say that converting
will cause loss, even if it is, like you said, ‘small losses.’

And where did it get the profile from which it is
embedded in?

When the file was written to disk, it was in a certain color space (and apparently that was NOT AdobeRGB, but something else). That profile was tagged to the file at the time of writing.

This is the reason for my question:-) The only disk the file was written to, was my camera’s xD card. Therefrom it’s loaded on my PC via the card reader.

You may not realise this, but
profiles and color spaces are the same. AdobeRGB is a color space, the AdobeRG profile describes this collor space.

This was my conclusion, Johan.

Martin Evening’s suggestion is to use a prepress setting in the color management settings. It would really not make sense if I use said setting, and my camera record another profile, which will have me going back to the original
Usually it is better not to convert, but to keep the profile (option 1).

Thanks for your reply.

Dave

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