Re: ICC Profile location for PS RAW
Re: ICC Profile location for PS RAW
- Subject: Re: ICC Profile location for PS RAW
- From: bruce fraser <email@hidden>
- Date: Mon, 3 Nov 2003 17:00:45 -0800
The problems with doing so are:
1.) You need two profiles, not one. ACR uses a 3200K profile and a
6500K profile. The color temp and tint controls interpolate between
(and if necessary, extrapolate beyond) the two.
2.) The profiles would have to be at least as good as the ones built
by Tom Knoll. I've yet to see a third-party profiling tool that comes
close. (And of course, you'd need definitive 3200K and 6500K light
sources under which to build them.)
Digital cameras are a fundamentally different case from monitors,
printers and scanners. Monitors and printers have a fixed gamut.
Cameras don't-they have a color mixing function, which is a much
slipperier animal. Cameras will produce some kind of response to
whatever is placed in front of them. (The same is true of scanners,
but since the material being scanned DOES have a fixed color gamut,
it's a moot point.)
You can of course ask Adobe for whatever you want, but for me, ACR is
a step forward, not backwards.
At 5:48 PM -0600 11/3/03, Mark Buckner wrote:
I find the lack of support for camera profiles in Adobe Camera RAW to be
both interesting and disappointing. As it was initially explained to me on
other lists by proponents of ACR, it was to render camera profiles
unnecessary, because you just use the controls to make the image look the
way you want it to look. I thought that seemed like a step backward. We
profile scanners, printers, etc. based on empirical data, then for cameras
we're back to a "make it look good to you" approach for cameras.
Then came ACR 2 inside the new Photoshop CS, with added color control
sliders on the "calibrate tab". On their own discussion list, Adobe's Thomas
Knoll allowed as how this was because of the need to ""tweak" Camera Raw's
built in profile" to compensate for the fact that "the user's individual
camera differs from the camera that Adobe used to build Camera Raw's
built-in profile for that model".
Seems to me to make the case for using custom camera profiles, and
furthermore that we should be asking Adobe to provide support for the use of
custom profiles in ACR. This system reminds me a bit of Knoll Gamma, from
which I thought long since moved on.
My $0.02,
Mark
--
email@hidden
_______________________________________________
colorsync-users mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/colorsync-users
Do not post admin requests to the list. They will be ignored.