It uses scripts and process modules for tasks like background extraction, noise reduction, and deconvolution. Add-ons use machine learning for noise and star removal. Photographers work in a non-destructive way and save workflows.
The interface is technical, and beginners usually take time to learn it. It is sold as a license.
Siril is a free alternative, and Photoshop is used for finishing. PixInsight suits serious astrophotographers.
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