Re: Profiling digital cameras
Re: Profiling digital cameras
- Subject: Re: Profiling digital cameras
- From: Andrew Rodney <email@hidden>
- Date: Sun, 10 Mar 2002 09:34:10 -0700
on 3/10/02 8:36 AM, Jack Bingham at email@hidden wrote:
>
What we need is a clear understanding of what a camera
>
profile does. It does characterize how a camera responds to a particular set
>
of colors
>
under a specific lighting condition.
My recommendation to profile under every situation on the fly doesn't
invalidate that view.
>
If you change the condition, i.e. shadow one corner
>
of the target or have one light 100 degrees kelvin cooler than another you
>
will
>
radically change the outcome.
That's why having a means to profile that scene somewhat automatically in
the capture software is what we need.
>
What you need is one
>
profile created under these carefully controlled circumstances, that can be
>
applied under
>
most lighting circumstances following proper linearization(gray balance) of
>
the camera
>
for each scene.
What you need is to gray balance in SOME cases at the time of target capture
and profile creation. Gray balance isn't going to produce an acceptable
profile on location at the beach at sunset!
>
One profile serves me extremely well under all lighting conditions I
>
need to work under, tungsten, strobe, fluorescent and any number of grim
>
industrial
>
types. We really do need to get past this notion of a profile for each scene,
>
cause 1.
>
it does not work and 2. it is completely unnecessary.
I've seen this to be the case with SOME (very few) camera systems. How many
camera systems have you found this to be the case and would you please let
us know which?
Andrew Rodney
_______________________________________________
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.