Re: sRGB or Adobe RGB?
Re: sRGB or Adobe RGB?
- Subject: Re: sRGB or Adobe RGB?
- From: Pete Carter <email@hidden>
- Date: Sat, 22 May 2004 09:48:10 +0100
Roger,
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OK. I finally found the Color Management Off settings at my end.
Good
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I never thought I'd ever find a need for such a setting so I confess I never
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thought it could have ben there.
>
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Well, if you examine what 'color management off' has you'll see that all it
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does is not really turn color management off, but use the monitor profile as
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the RGB working space.
I gathered that as theres not at lot left.
But when it comes to displaying
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untagged RGB data, as in your case, there is something akin of a null
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transform going on, IMO. The RGB data is first converted to Lab through the
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RGB working space and then given to the monitor profile which converts from
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Lab to RGB before giving it to the video card.
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So when I open an sRGB tagged file in PS and click don9t colour manage, PS
converts the embedded sRGB via its LAB engine to whatever is set in working
space.
If I turn off colour management and do the same PS converts it to my monitor
profile.
OK I checked this and if I set my working space to my monitor profile theyre
now both the same. Good.
So if my PS working space is AdobeRGB and I bring in a camera sRGB image and
view it under say preview or iPhoto the reason it looks lighter than in PS
is because PS is doing the AdobeRGB to monitor profile conversion when I
select don9t colour manage.
Im not sure that Im happy with this.
This is what started the question when a client said his images look better
and more accurate under iPhoto than in PS
In truth they probably do as the camera is producing images that are too
dark to start off with??
Phew!
Im now using my monitor space as my working profile. Contrary to what some
might say no doubt, but the profile must be good as Im getting really good
prints...now to try and get CS filters to apply printer profile in iPhoto..
Regards and thanks for your time,
Pete
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