Targeting sky areas for smoothing


I have experimented with several ways of targeting “sky” areas for smoothing in my cloud/sky photographs. I sometimes try selecting by color (shades of blue/cyan) and other times tinker with luminosity masks. The goal is minimum digital noise in these areas and good results with anisotropic/bilateral/thin brush. Am I overlooking a better approach? The docs I found on G’MIC smoothing seem deeply technical.

(Mica) #2

There are a good amount of smoothing filters in gmic. Two of the more popular for skin retouching, which yield a similar result as what you’re looking for, are dream smoothing and bilateral smooth.

Of course, you can check them out for yourself!

(David Tschumperlé) #3

This reminds me this video :

Here, I used the G’MIC select-by-color filter to mask the sky and change its color, but I guess you can just blur it instead after the selection.


The G’MIC interactive color masking is slow even on my fast PC, but a few minutes for a way better mask than other tools. Great interface and great results - thanks for the tip!

(David Tschumperlé) #5

Yes it is slow indeed :slight_smile:
Multiple cores help a lot for this filter !