Re: Profiling Digital Cameras (long)
Re: Profiling Digital Cameras (long)
- Subject: Re: Profiling Digital Cameras (long)
- From: email@hidden
- Date: Sun, 10 Mar 2002 11:47:39 EST
In a message dated 3/9/02 5:29:14 PM, email@hidden writes:
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Well, my cover is blown. This is exactly the "secret" I thought I had
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uncovered in the last few months.
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My method was very similar to Andrew's: I would make a few profiles with
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a
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couple different charts, take this into ColorThink and start comparing
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the
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color gamuts of the camera profiles to a bunch of "standard" RGB working
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spaces and find the one that seems to fit the best.
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This type of solution is based on matrix profiles, which in turn are based on
liniar devices. So we are not making subtle corrections for rusty reds being
a bit too bright, while saturated purples are a bit too blue, or other
details that only a LUT based profile can manage. Instead we are correcting
only the RGB primaries and the way they interact with neutaral grays, whites
and blacks. All this without even the video card corrections a matrix monitor
profile gets! So if that is all one wants from a camera profile, then indeed
it would be possible to get that by trial and error or other manual solutions.
C. David Tobie
Design Cooperative
email@hidden
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