"Preprocess" module

In the left tool panel is the "Preprocess" module, which contains a number of utilities to improve the image before stacking (noise reduction, chromatic aberration and vignetting).

IMPORTANT: The utilities of the "Preprocess" module are always applied before stacking in order to improve the stacking results. Thus, it is not possible to apply any of these functionalities after stacking (with the exception of vignetting correction, which can be applied both before and after stacking). Therefore, the "Preprocess" module options are enabled when importing the images and are disabled once the stacking is finished.

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