This section takes you through the different steps of pre-processing your images, from import into Siril to obtaining a stacked image.
The right pane contains the tabs that are useful during preprocessing. They have been designed to be used from left to right throughout the process, with some exception for the creation of masters. These tabs are also accessible via the keys F1 to F7.
Pre-processing is the step that starts with the conversion to the stacking of the images. The goal is to remove all unwanted signals and to reduce the noise present on all the subs.