I recently came across some demonstrations on how to use RegiStax6 and its Wavelet filters to sharpen images, especially planetary shots.
The instructions I found and read/watched all had in common that there was a lot of playing with the different sliders, but no satisfying explanation of what the different values actually meant. Possibly partly because of that I have never been able to recreate the kind of sharpening that does seem to be possible with this tool!
So, for better usage of the wavelet tool (in registax oder some other software you might recommend) I would like to know: How do the different parameters ('denoise', 'sharpen', the unlabeled slider) in the different layers affect the image; how does the 'step increment' section affect the layers; an what could be a good approach to use all this in sharpening images?
(I do have some basic knowledge about filtering, had to code grayscale gaussian filtering by hand in university, but until now I have no clue how this wavelet sharpening works.)