Testing the new noise profiles
Test the noise profiles locally by running (from the test image directory)
darktable –noiseprofiles ./presets.json
Go to darkroom mode with one of your profile images. You should now be able to turn on the denoise (profiled) plugin, which will detect your camera and assign the appropriate ISO noise profile settings. You’ll want to make sure the result is what you’d expect (denoise works). Note that you will see noise increase when you get to the really high ISO images. That’s normal and unavoidable.