Re: Colour correction affecting only particular colours

[Helen <etters.h@xxxxxxxxx>]

On Sat, Aug 2, 2008 at 8:26 PM, David Gowers <00ai99@xxxxxxxxx> wrote:

On Sun, Aug 3, 2008 at 7:48 AM, Milan Knížek <knizek.confy@xxxxxxxx> wrote:
> Hi all!
>
> I have been struggling to correct skin tones in GIMP without affecting other
> colours of the image. The problem is that whatever method I use (channel
> mixer, colour mapping, hue/saturation on particular colour channels), some
> other hues are also affected (green, blue).
>
> I tried also Select by colour and modify just the selection, however, I have
> not succeeded to correctly select just the skin tones.
>
> Pictures are better then words, so here is an example (screenshot of Picture
> Window Pro's Colour Correction). Image on the right is being corrected to
> get closer to the image on the left, preview of the change is on the top.
> Note that other hues (tree branches, clothes) on the preview are the same as
> on the source image.
>
> http://www.milan-knizek.net/files/tmp/Colour_Correction.jpg
>
> Is there a way how to do this in GIMP?

I would try complex selection -- for example, you can select the skin
pretty well using FG-extract selection tool, then deselect green thing
and dress using Magic Wand.

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Regarding the suggestion to add a layer mask:  I've never learned to use masking, but
would the effect be the same if you use the erase tool to show the lower layer through?
Any difference, that learning layer mask would be preferable?

Helen,
Gimp 2.4 on Suse Linux



--
Helen Etters
using Linux, SuSE11

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