Astrophotography Image Processing with Graxpert, Siril & GIMP
This comprehensive guide walks you through the entire workflow of processing astrophotographs using three powerful, free software tools: GraXpert, Siril, and GIMP. By leveraging the combined strengths of these programs, you can achieve results that rival those produced by expensive, professional-grade software.
The book offers clear, step-by-step instructions to help you transform RAW and FITS images of astronomical objects into stunning final images. With a focus on clarity and accessibility, it breaks down the core processes to ensure that even beginners can follow along with ease.
In addition to traditional One-Shot Color (OSC) cameras, including both dedicated astrophotography cameras and DSLRs, the guide also covers the use of smart telescopes like the ZWO Seestar, making it an essential resource for a wide range of astrophotography enthusiasts.
Downloads
The guide uses images of M31, the Andromeda Galaxy as a worked example. The zip file below contains two files
M31.fits – The stacked: Calibrated Registered and Integrated file produced from a large data set of Lights, Darks, Flats and Dark-Flats. These original data files take up over 12Gb of space and little is gained from repeating the scripted process.
M31Final.Jpeg : As the name suggests this is the version after all processing stages, as described in the guide. This file is shown below so you can see what can be achieved using these free software systems. (Right Click to Download)
