[Leica] IMGS: Color Balancing (Blue Trees)

[Don Dory]

Hi Tina,  just like in the Smoky Mountains the distance goes blue hence
your blue trees.  For those one or two special images using a graduated
filter with a lot of yellow and a little red/magenta can take out the blue
as needed.

On Tue, Nov 26, 2019 at 4:38 PM Tina Manley via LUG <lug at leica-users.org>
wrote:

> PESO:
>
> I'm scanning 7000 slides from Switzerland, most of them Kodachromes, most
> from 1989.  One category is 56773 - Switzerland Countryside.  If you have
> been to Switzerland, you know that the Swiss countryside is beautiful.  I
> want to get it right.  Here is the original scan, scanned on the Nikon
> LS5000 with Vuescan set for Kodachrome:
>
> https://pbase.com/tinamanley/image/170112330
>
> It's too dark and the trees are blue.
>
> I lightened it and balanced the color based on the white house in the
> foreground:
>
> https://pbase.com/tinamanley/image/170112332
>
> Everything looks fine except the trees in the distance are blue.  I
> remember them being blue but maybe I'm wrong.  I subtracted the blue.
>
> https://pbase.com/tinamanley/image/170112333
>
> Now everything looks too green.  I have many, many of these slides to
> adjust and want to get it right but believable.
>
> What do you think?
>
> C&C greatly appreciated.
>
> Tina
>
> --
> Tina Manley
> www.tinamanley.com
> http://www.pbase.com/tinamanley
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> >
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-- 
Don
don.dory at gmail.com