Re: untagged RGB data
Re: untagged RGB data
- Subject: Re: untagged RGB data
- From: bruce fraser <email@hidden>
- Date: Fri, 19 Dec 2003 16:46:13 -0800
At 3:10 PM -0800 12/19/03, John Zimmerer wrote:
I'm not sure I buy the need for "OS working spaces", since I truly
believe all data should be tagged. And ultimately, this is the
domain of the user space applications (including AppleScript and
sips), since they manipulate color directly. The OS should simply
render source color accurately, and have a single definition (across
workflows and continents) of how untagged source data is treated,
per color space.
John,
There are many reasons for working with untagged data.
RGB profiles are small, certainly, but you need to get off your T1
line and back on dialup to understand the impact of adding 4k to
every single JPEG on the web. It's not going to happen anyway, but
I'll argue strongly that it makes bugger-all sense to load the web
with tons of redundant data in the form of zillions of copies of the
sRGB profile.
For CMYK, the same argument applies in spades. Real World Photoshop
CS will contain about a thousand images, most of them under a
megabyte, the very largest ones maybe 5 megabytes. It will be a cold
day in hell before I contemplate adding 1.5MB of profile data to
every image.
I think I can fairly claim to be as big an evangelist of color
management as anyone else on the planet, but the "all data should be
tagged" argument is not one I'll buy. Not only is it simply not going
to happen, there are plenty of very good reasons why it shouldn't
happen.
If you're going to leave everything to the apps, scrap ColorSync. If
you want a system-level OS, it needs to behave in a way that the
majority of its users will find useful. Right now just about everyone
on this list is telling you that it currently is not doing so, and
giving you detailed reasons why it is not doing so.
BTW, re:"The OS should simply render source color accurately, and
have a single definition (across workflows and continents) of how
untagged source data is treated, per color space."
Tagging it with the local monitor profile BY DEFINITION guarantees a
unique definition of untagged color for each workstation, possibly
even for each user on a single one...
--
email@hidden
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