Color Correction

[oshayh]

Hey everyone, I'm was just wondering how to warm up an image, I also noticed my version of GIMP 2.8 is missing a lot of options in the color settings such as exposure and color temperature.

[Ofnuts]

You can use Curves, select the Blue channel, and drag it down slightly.

Otherwise In Gimp 2.8 a good script to adjust the color temperature is Luca De Alfaro's colortemp script. Its WhiteBalance sibling is also very useful.

[rich2005]

Depending on your version of Gimp 2.8 (64 bit or 32 bit), installing the gimp_gmic_qt plugin http://www.gmic.eu provides many tools for adjusting colours.

[oshayh]

(07-20-2021, 06:48 PM)rich2005 Wrote: Depending on your version of Gimp 2.8 (64 bit or 32 bit), installing the gimp_gmic_qt plugin http://www.gmic.eu provides many tools for adjusting colours.

I'm using Gimp 2.8.22 and I'm struggling to install this plugin, are there any tutorial videos you can refer me to?

[rich2005]

Let me know if you are using a 32 bit or a 64 bit Windows and I will give you some details.

Easy way to determine 32 bit / 64 bit
Open windows explorer. Look in the C: drive.
If there is C:/Program Files/ and C:/Program Files (x86)/ then it is 64 bit
If there is only C:/Program Files/ then it is 32 bit

[oshayh]

(07-23-2021, 07:56 AM)rich2005 Wrote: Let me know if you are using a 32 bit or a 64 bit Windows and I will give you some details.

Easy way to determine 32 bit / 64 bit
Open windows explorer. Look in the C: drive.
If there is C:/Program Files/  and  C:/Program Files (x86)/ then it is 64 bit
If there is only C:/Program Files/ then it is 32 bit

I am using a 64 bit version of Windows.

[rich2005]

64 bit Windows - good, more choice than the legacy 32 bit version.

Get the last version for Gimp 2.8 via the gmic.eu 'browse-all-files' page: https://gmic.eu/files/windows/gmic_2.9.6..._win64.exe

That is an installer and puts a gmic_gimp_qt folder in your C:\Users\"yourname"\.gimp-2.8\plug-ins user profile.  screenshot: https://i.imgur.com/mFCpf6B.jpg

You need to add that folder to the Gimp plugins paths Edit -> Preferences -> Folders -> plug-ins  https://i.imgur.com/62s4qIS.jpg

Restart Gimp and there should be an gmic entry bottom of the Filters menu. Greyed out until you open an image. 

Start gmic up and refresh the filters.  There is a search option top of the gmic-filters list. Lots of choice when it comes to color adjustment.

This a 5'-30'' video of the whole process from downloading - installing - using https://youtu.be/4RB7o8qVq94

[oshayh]

It worked! Thank you @rich2005 and thank you @Ofnuts for your prompt response as well!