Re: [Gimp-user] removing tint from a picture

[akovia <akovia1 eml cc>]

On Thu, Jul 30, 2015, at 12:34 PM, Liam R E Quin wrote:
> On Wed, 29 Jul 2015 18:59:40 +0000
> John Broyles <johnk_km hotmail com> wrote:
>
> > I recently converted some old slides to digital pictures.  Unfortunately some of the older slides have 
> > developed a pink tint, probably from age.  Can I remove this tint in the digital pictures using Gimp?  I 
> > looked at color level but could not understand whether this would solve my problem or not.
>
> Two fairly easy ways -
>
> (1) use Colour/Colour Balance
> (2) use Colour/Curves to raise green and blue
>
> You can get a start on (2) with Colours->Levels and pressing auto;
> unfortunately this may lose a small amount of detail in highlights and
> shadows, but if before pressing OK you click on Edit in Curves (the exact
> labels and menu names may vary depending on your language and locale of
> course) you can move the curves slightly. For many applications
> levels/auto works magic.
>
> Liam
>
> > Thanks,
> >
> > John
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>
>
> -- 
> Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/
> Pictures from old books: http://fromoldbooks.org/
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-- 
  akovia

This is what I use and get great results.
https://www.youtube.com/watch?v=gr692iyYBUI