[Gimp-user] GIMP changing colors in image.

[NewGirl <forums gimpusers com>]

Thank you so much! This gave us some great starts to trouble shoot. Haven't
completely solved the problem but have a much better idea why it's happening and
some ideas of what to do.

> If you are taking the photographs of your artwork then it is probably
> a hardware issue.
>
> First, what is the format the camera uses? RAW or possibly jpeg. Going
> from RAW into Gimp involves a conversion with all sorts of tweaks
> where colours can be adjusted. Jpeg from a camera on the other hand is
> most likely RGB colour profile and not all colours are included. Look
> up color space
>
> https://en.wikipedia.org/wiki/Color_space
>
> A fix can be as simple as "auto white balance" in Gimp, but usually
> more is needed. You should take care about the lighting conditions
> when the photographs are taken. A bit of reading here:
>
> http://www.cambridgeincolour.com/tutorials/white-balance.htm
>
> Then the computer display. For best results the monitor should be
> calibrated. Monitors straight out-of-the-box will have their
> brightness set too high. There are simple ways to get sensible
> setting. see:
>
> http://www.cambridgeincolour.com/tutorials/monitor-calibration.htm
>
> However, all your potential customers will also have their monitors
> un-adjusted so they will get a wrong impression of your work whatever
> you do. Why not include a disclaimer on your web page.
>
> rich: www.gimp-forum.net

-- 
NewGirl (via www.gimpusers.com/forums)