Re: Profiling Digital Cameras
Re: Profiling Digital Cameras
- Subject: Re: Profiling Digital Cameras
- From: Roger Breton <email@hidden>
- Date: Sat, 09 Mar 2002 07:09:01 -0500
>
The problems of profiling a digital camera are in the light source.
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Scanners have light sources built in and are constant, so a profiling for a
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scanner is reasonably consistent. Profiling a camera will demand a profile
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that is produced for each lighting situation. This can be done by carrying
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a Macbeth color target around and organizing groups of images with it's
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shot of a control target shot with a that particular lighting condition.
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This image of the target would be used to profile that group of shots with
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the lighting used to produce them. These profiles can be attached to their
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corresponding image. So yes profiling can be done. There are situations
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where 3d objects will be difficult. For example Sodium light contaminating
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a Mercury vapor lit room. These are close to impossible conditions but I
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thought it would get the point across.
>
>
Sam Landry
Sam,
What do you do in a "mixed" lighting situation -- fluorescent, daylight and
tungsten sources in the filed of view?
Regards,
Roger Breton
Laval, Canada
email@hidden
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