Re: Panther, sRGB, web browsers
Re: Panther, sRGB, web browsers
- Subject: Re: Panther, sRGB, web browsers
- From: Chris Murphy <email@hidden>
- Date: Thu, 18 Dec 2003 20:49:52 -0700
On Dec 18, 2003, at 4:31 PM, John Gnaegy wrote:
Can I point out again we're talking about untagged image data? I'm
not convinced that assuming sRGB for untagged image data is
significantly more reliably accurate than assuming the display
profile. For untagged image data you're always just guessing where it
came from no matter what you assume.
It seems pretty self evident to me that it's better to guess ONE THING,
even if it's not always correct, than for the guess to be a RANDOM
THING which increases the odds that it's not correct astronomically.
It guarantees failure to a similar degree of probability as assuming
that it's sRGB unless the image was created in sRGB. I would think
that if it were created in explicitly sRGB space that there would be
an embedded profile.
Your assumption here is flawed. Most sRGB images are not tagged as sRGB.
sRGB isn't identical to "any unknown monitor space", it's not a cure
all for the problem of untagged image data.
It's not meant to be. It's meant to provide a best guess, as well as a
consistent guess. No more no less. Assuming monitor RGB is far worse
because it's a random guess. And because of the legacy Mac gamma of 1.8
there is a very good chance monitor RGB is a bad guess.
Sure I agree sRGB is one way this could have gone, but I don't think
it's necessary to completely discard it with the argument that
assuming sRGB would have significantly increased your chance of
accurately guessing an untagged image's creation environment.
It significantly increases the chance over monitor RGB, that much is
certain.
Ideally at some point it'd be nice to have a user configurable
equivalent of a system wide working space, I agree from a color geek
standpoint.
I used to think so, and I'd still consider this as an advanced feature
that could be buried somewhere. But otherwise I think untagged RGB
should equate to sRGB, and put the burden on all of those who do not
like this arrangement to embed a more suitable profile. It would
dramatically increase consistency between other platforms and the
Macintosh to do this, and it would dramatically increase consistency
between Macintosh computers to do this. It's win-win.
From a performance standpoint it's a win the way it is now without
being completely unreasonable. Remember, everything is matched as
you'd expect if the image data has an embedded profile.
And since most images don't have embedded profiles, a monitor RGB
workflow mean most everything does not match.
Chris Murphy
Color Remedies (TM)
www.colorremedies.com/realworldcolor
---------------------------------------------------------
Co-author "Real World Color Management"
Published by PeachPit Press (ISBN 0-201-77340-6)
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| References: | |
| | >Panther, sRGB, web browsers (From: Chris Murphy <email@hidden>) |
| | >Re: Panther, sRGB, web browsers (From: Steve Upton <email@hidden>) |
| | >Re: Panther, sRGB, web browsers (From: Chris Murphy <email@hidden>) |
| | >Re: Panther, sRGB, web browsers (From: John Gnaegy <email@hidden>) |
| | >Re: Panther, sRGB, web browsers (From: John Fieber <email@hidden>) |
| | >Re: Panther, sRGB, web browsers (From: Chris Murphy <email@hidden>) |
| | >Re: Panther, sRGB, web browsers (From: John Fieber <email@hidden>) |
| | >Re: Panther, sRGB, web browsers (From: John Gnaegy <email@hidden>) |
| | >Re: Panther, sRGB, web browsers (From: Grant Symon <email@hidden>) |
| | >Re: Panther, sRGB, web browsers (From: John Gnaegy <email@hidden>) |