Re: Camera Profiling question
Re: Camera Profiling question
- Subject: Re: Camera Profiling question
- From: "Richard Apollo" <email@hidden>
- Date: Sat, 13 Sep 2008 08:10:48 -0500
Rich Apollo
Prepress Mgr
Oklahoma Offset, Inc.
email@hidden
918-732-8168
>>> "dpascale" <email@hidden> 09/12/08 8:52 AM >>>
>
>The combination of the smooth or spikey illumination with the smooth or
>irregular spectrum of colored objects will produce different colors. This is
>called Color Constancy, and this is the basis for the Color Inconstancy
>Index which determines the color shift for a given color when changing the
>illuminant.
>
>In practice you can can always "normalize" your images so that they all
>match for a given color. Since this is often done for white (White-Balance),
>you can obtain uniform white for all illuminations. However, nothing in this
>process says that a pinkish color will look the same agains a greenish color
>in all shots, since each color will/may shift differently with each light
>source.
>
>So there will always be a difference even if you do not want it (unless you
>manually correct the colors).
That's kinda' what I thought. Every time I see this argument erupt it strikes me that there's a big disconnect in the community based on the desires of the photographers involved.
The Star-Bellied Sneetches want the elements in the photograph to render the same color under all lighting conditions, therefore camera profiling doesn't work.
The Plain-Bellied Sneetches want the elements in the photograph to reflect the lighting conditions, therefore camera profiling works.
To me it looks a lot like the difference between Absolute Colorimetric and Relative Colorimetric - white point rendering or white point adaptation.
______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please visit http://www.messagelabs.com/email
______________________________________________________________________
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden