PixInsight 
Linear Image Quality Enhancements

Step 2: Gradient Correction

updated: 2025-09-28


Purpose

Gradient correction should always be the 2nd step in image development and must be carried out before any further processing.

Personally, I prefer GraXpert for gradient correction because it is user-friendly and produces good results.

PixInsight Release:

newer than version 1.8.9-2 / build 1604

Input

The cropped / rotated image from the previous step

Output

An image that contains the essential elements and hides distracting edges or gradients

Previous Step

Image Transformation

Alternatives

Next Steps

Deconvolution


Cropped or rotated image from step 1

Gradient corrected image (using GraXpert)


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