PixInsight - Image Post Processing

NoiseXTerminator

Version 2 with AI version 3

updated: 2025-02-12

NoiseXTerminator is a fast and easy-to-use AI-based noise reduction tool specifically designed for astrophotography. While AI-based noise reduction solutions exist for general photography, they have not been trained on astronomical images. As a result, they often mutilate stars and invent details that simply aren't there. 

NoiseXTerminator has been trained exclusively on deep-sky astrophotography, so its neural network is "familiar" with stars and the types of detail we see in our photos.

NoiseXTerminator is an external plugin and is not included with PixInsight. It must be purchased and installed separately - see this link: NoiseXTerminator.

Important: 

  • Noise reduction of any kind should never be applied before deconvolution of any kind, including BlurXTerminator
  • NoiseXTerminator can just as easily process linear data as non-linear (stretched) data
  • For the intensity/color separation option (described in the user manual, see link below) to work, NoiseXTerminator needs to be run on a color image (i.e., after channel combination)
  • NoiseXTerminator is trained to handle differences in noise statistics between color channels


Before

After


NoiseXTerminator Settings:

var P = new NoiseXTerminator; 

P.ai_file = "NoiseXTerminator.2.pb"; 

P.denoise = 0.72; 

P.detail = 0.59;


NoiseXTerminator Release notes: NoiseXTerminator 2/AI3 Released for PixInsight – RC Astro

NoiseXTerminator Workflow Description: NoiseXTerminator 2/AI3 User Manual (PixInsight) – RC Astro


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