A simple GEGL filter to reduce noise.
This filter is found in the main menu under Filters → Enhance → Noise Reduction….
Figur 17.39. Noise Reduction filter options
Desse innstillingane er omtalte i Del 2, «Felles eigenskapar».
Increasing Strength lessens noise, and increases blur: find compromise using the on-canvas preview.
Original
Filter applied. Strength = 5