Add beautiful blue skies to any picture with GIMP Add-on - Blue Sky.
Turn a dark day into a bright and exciting one with this simple add-on for GIMP. Just run the “Blue Skies” functions from within GIMP and it will automatically detect where the sky is in your photo and replace it with a natural blue.
-Horizon Fade-Continuously fades to a lighter blue to mimic the natural color changes of the sky as you approach the horizon.
-Add Clouds-Automatically drop in clouds to give the sky more texture.