I am processing some raw images from my Canon camera.
I am using Rawtherapee on a Mac desktop.
When I try to apply noise reduction, the changes are not taking place, or at the very least are not being perceived by me.
I have a very noisy image from a high ISO setting as my test image. So it is definitely a good candidate for noise reduction.
I have hit the enabled button for both "impulse noise reduction" and "noise reduction". I have put the sliders full in all directions.
I do not notice one bit of difference in the noise reduction.