What does diffuse or sharpen really do?

[123sg (Steven)]

I haven’t… interestingly @s7habo recently noticed something like this too - it seemed to be related to color balance rgb.
Scroll down from here…

Creating Cinematic Look in Darktable

Thank you for the hints Boris, When trying to reproduce your example, in the shadows appear very bright pixels what is happening here and how to prevent this? [image]