ImageMagick - how to convert green pixels to red?
 

Does anyone know how to move all the green pixels in an image to red pixels?

I don't want to just change the hue, I want to make the green channel red.

figures... as soon as I post it, I find a solution... For those who are curious:

convert some_image.jpg \( +clone -channel G -fx R \) +swap -channel R -fx v.G swapped.jpg

convert some_image.jpg \( +clone -channel G -fx R \) +swap -channel R -fx v.G swapped.jpg[/QUOTE]

Hail Brian,

I'll take that as a sign (with your holy sandal :-) praising you as the Hero of the Day! - even years gone after posting that.

(To complete the example: Choose R, G and B for red, green, blue color channel.)

THANKS A LOT!

After using it on a bunch of files (working on a Cinnamon theme) I realized that this is not the perfect solution.
A lot of - even greenish - colors already consist partly of red and blue. If you only replace the green RGB part by blue, the result is a bit violet because the red part play a bigger role now.
I'll try a more "rotating" mode to change that...