Episode 004: A Ship in the Fog (2) - Correcting Colours
In this episode of my video podcast I show how to correct colours with layers in GIMP.
For reducing the green tint of the image I add a layer filled with a bright magenta (white minus a bit green) and set the layer mode to “multiply”. This reduces the green in the image proportional to the amount of green in each pixel. The amount of the effect can be adjusted by changing the opacity of the layer or changing the colour of the layer.
Then I add a bit of blue with a layer filled with a very dark blue (black plus a bit blue) and set the layer mode to “screen”. Now the blue in each pixel is enhanced proportionally. This can also be adjusted.
Please let me know what you think about the show. Too slow? Too fast? Too much ramblings? Or too much information? Even if you like everything - write a comment or drop me a mail at info@meetthegimp.org
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Tags: colour tint correction, layer mode, multiply mode, screen mode
August 5th, 2007 at 6:54 pm
Very nice work. I look forward to more installments.
Thanks for sharing your talents.
December 3rd, 2007 at 1:38 pm
Dear Mr Steinort,
I am a teacher at the Heidelberg International School. I am starting to show my gr 10 students how to use GIMP to improve their digital photos. I really like your video casts and I learn a lot from each one (I am also new to GIMP - I have used PhotoShop for many years, but PhotoShop is very expensive for our school). Is it ok with you if I use them in my classes at school?
Kind Regards
Kevin
December 3rd, 2007 at 2:08 pm
Yes, of course! The more the better!
The podcast is licensed under the Creative Commons. You can use it everywhere, copy it, sell it, dub it, cut it up and make a new one… Just keep my name somewhere in it.
December 5th, 2007 at 7:32 am
[...] Episode 004: A Ship in the Fog (2) - Correcting Colour [...]
December 12th, 2007 at 8:42 am
I appreciate the podcasts - thank you for the effort. I am new to image manipulation software, so each lesson helps a lot. In episode 4, you used 2 layer modes to achieve the effect you wanted - color reduction, and color addition. I think working on a particular task is the best way to learn, but you might also consider a lesson in which you explain the basic uses for all of the many layer modes. There are so many options in so many areas of the GIMP, and an introduction to the options in some of the more important dialogs would help.
December 12th, 2007 at 8:19 pm
A layer episode is planned - but a bit tricky….
April 22nd, 2008 at 12:31 am
Thank you for doing these tutorials. I have just started to use Gimp and they are a great help and open the program up for me, I still have a lot to see and am looking forward to them. Very nice great work !