Re: Profiling Digital Cameras (long)
Re: Profiling Digital Cameras (long)
- Subject: Re: Profiling Digital Cameras (long)
- From: Terry Wyse <email@hidden>
- Date: Sat, 09 Mar 2002 17:26:05 -0500
on 3/9/02 11:36 AM, Andrew Rodney wrote:
>
>
The fix which worked amazingly well was to use Photoshop 6 and a modified
>
RGB Working Space as the input profile. Here's what I did:
Well, my cover is blown. This is exactly the "secret" I thought I had
uncovered in the last few months.
My method was very similar to Andrew's: I would make a few profiles with a
couple different charts, take this into ColorThink and start comparing the
color gamuts of the camera profiles to a bunch of "standard" RGB working
spaces and find the one that seems to fit the best.
Now take the target shots into Photoshop armed with this working space. I
would then start playing with different gammas till the hilight and midtone
patches on a Kodak Gray Scale fell in line. Save the edited working space as
the "camera profile" and assign this to the images. Usually at the same time
I would create a couple gamma variations (1.4) for under/overexposed shots.
So far, although ultimately not as color accurate as a 'real" camera
profile, it produces more than acceptable results with NO banding or
posterization artifacts like I regularly get with the real camera profiles.
Terry
_____________________________
Terence L. Wyse
Color Management Specialist
All Systems Integration, Inc.
http://www.allsystems.com
email@hidden
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