Mure denoise adding noise


Well-known member
Jan 14, 2012
Im trying to get the mure denoise script to run with my M42 RGB image with no luck. The stack is done with the weighted batch process but I also tried on an individual sub - on the single sub it made no difference, on the stack it added noise. My camera is an ASI1600 Pro and I was using Gain 75, below are the settings and a before/after image



Well-known member
Mar 5, 2014
The variance scale is much too high.

I would suggest creating a number of previews and then applying different variance scales to each. I would suggest 0.5, 0.75 and 1.0. Blink between them and compare the results. Personally, I look for a result that doesn't completely eliminate the noise (and when you get the effect in your sample image, you have gone too far). Once you find which preview you like best, then apply that to the main image.
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