Gimp → wavelet-decompose

[darix]

The equalizer video in the list of rwh’s tutorial can give you something similar in darktable.

Darktable video tutorials

I wanted to make a note of a great resource I was pointed to a while back a darktable Youtube Playlist from @rwh. It was particularly helpful when trying to get a feeling for darktables noise reduction methods: and particularly using the Equalizer module: He has a bunch of other great videos that are all well worth a look! It’s a great resource and well worth a bookmark/subscribe.

JFYI