Cooling photos with GIMP.

Mark A Framness

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Dec 11, 2004, 1:55:37 PM12/11/04

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Greetings,

I have a set of photos I shot (onto film) burned onto CD. I shot with the
present stage lighting and the photos have turned out to be very very warm.
How can I cool them down using GIMP? Turning up the brightness helps with
the photos somewhat but I have to do a little more.

Thanks
Mark

Ikarus

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Dec 11, 2004, 2:00:32 PM12/11/04

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Mark A Framness schrieb:

(1) Desaturate them a bit
(2) Try the channel mixer (Filter->colours->channel mixer)
(3) Try to adjust the colors (Layers->colours->adjust)
(4) Try also the levels dialog (Layers->colours->levels)

THT,
Ikarus

Branko Collin

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Dec 11, 2004, 2:20:25 PM12/11/04

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Mark A Framness <fram...@athenet.net>, you wrote on Sat, 11 Dec 2004
12:55:37 -0600:

Keeping in mind that I am not a photographer: perhaps you also need to
decrease saturation. Also, I can imagine that light sensitive surfaces
like film or CCD are more sensitive to certain colours, depending on
the situation. So you may also want to change value and saturation per
channel. One way to do that all at once is by using the Levels tool.

--
Deze geheele aarde door ijzeren banden omspannen, met de
stoomvaartlijnen die als draden over de zeeën zijn getrokken,
Dezen wereldkloot in zijn tuimeling door het heelal breng ik U.
"Grashalmen", Walt Whitman, http://www.gutenberg.org/etext/14281

Mark A Framness

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Dec 11, 2004, 2:59:53 PM12/11/04

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Branko Collin wrote:

> Keeping in mind that I am not a photographer: perhaps you also need to
> decrease saturation. Also, I can imagine that light sensitive surfaces
> like film or CCD are more sensitive to certain colours, depending on

I do not know about CCD (I guess it to be true as well) but film definitely
has that problem. You know those pictures taken with household light that
come out very orangish/warmish? That is the problem I am talking about.

Thanks to everyone for the direction!
Mark

Mark A Framness

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Dec 11, 2004, 4:38:16 PM12/11/04

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Ikarus wrote:

> (1) Desaturate them a bit
> (2) Try the channel mixer (Filter->colours->channel mixer)
> (3) Try to adjust the colors (Layers->colours->adjust)
> (4) Try also the levels dialog (Layers->colours->levels)

Thanks,

I am also discovering one combination of manipulations may not work as well
for another photo.

Gerald Hammer

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Dec 12, 2004, 4:04:48 AM12/12/04

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Mark A Framness wrote:

Try: Filters -> Colors -> Filter packet
(I am nor sure about the translation; my GIPM speaks German)

--
Gerald Hammer

Message has been deleted

Sundar

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Dec 16, 2004, 11:47:25 AM12/16/04

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Hi,

Mark A Framness wrote:
> I do not know about CCD (I guess it to be true as well) but film definitely
> has that problem. You know those pictures taken with household light that
> come out very orangish/warmish? That is the problem I am talking about.
>
> Thanks to everyone for the direction!
> Mark

check out the website www.gimp-savvy.com
you will find color correction process used for Gimp.

Normally, I Open the image, the do levels- auto.
then increase the mid value to 1.8 or 2.2 to bring the darkish photos.
and then do color correction using level tools (refer the open book
in the gimp-savvy website.

When you do one color correction for a photo taken in a particular
camera, you may need to do the same for other photos taken by the
same camera.

-Sundar