Gra X pert
A fast and easy way to remove gradients
Download GraXpert for your OS


About Graxpert
GraXpert is designed to remove gradients from astroimages. As the name suggests, gradients are gradual changes in brightness that are not part of the astrophoto but are caused by external interference. Causes can be e.g. light pollution or incorrect or missing flat correction, but also natural brightness gradients of the night sky and peculiarities of the optics used (shading in the form of a vignette).
In order to edit deep-sky photos, it makes sense to remove such gradients from the images. Not only does it look better, but also simplifies further processing of the image. Color casts can also be removed in this way and it generally makes sense to free the astrophoto from the amount of the sky background. In short: A gradient removal is very useful, if not mandatory.
GaXpert is freely available open source software that was programmed exclusively for this purpose. It works stand alone, not as a plug-in for any other software.
Examples
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You can find us here
GitHub
Visit our GitHub Repository. Download the latest builds or contribute to our software.
Discord
GraXpert was born at our Discord Server Dark Matters. Here you can contact us or ask for support.
Astrophotocologne
Astrophotocologne is the largest german YouTube channel related to astrophotography.