Re: Photo Filtration

de John Corliss 01/19/2007 01:57

Richard Steinfeld wrote:
> I'm looking for an image correction program (or part of a program) that
> will compensate for the discontinuous light spectrum of fluorescent
> lamps.
>
> I've been successful in illuminating still subjects for technical
> documentation using compact fluorescent bulbs, except that unlike
> incandescent bulbs, no matter what the claims have been for these
> compacts, their light output has a jagged color curve similar to standard
> fluorescent bulbs. The photos look weird and slightly sick -- not as bad
> as the long tubes put out, but still, the photos are unacceptable. I've
> not been able to adjust them properly using the normal controls in
> IrfanView, which are typical of other image programs I've used.
>
> Kodak used to make filters for fluorescents, the FLD and FLB, for
> daylight- or tungsten-balanced films, respectively. These worked quite
> nicely for most purpuses, and of course, like all other filters, were
> manufactured by other companies as well. Kodak also used the reverse of
> these compensations to fix color prints in their photo labs. I'd like the
> equivalent of these filters, only within an image-editing program.
>
> If this is solvable, we can use this method for cheap lighting for
> general indoor digital photography.
>
> Anyone know?

Richard, if you want to take this to email, please contact me at:

rtd3wsremovethis at yahoo dot com

Of course, "removethis" must be removed.

Maybe I can help you figure this one out. I have quite a bit of
experience with editing photographs.

--
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