Hi all,
Below is the requested tutorial(s) that demonstrates Fabian Neyer's technique of star removal. This did take a little effort to produce
... so I will be releasing it in parts over the next day or so. The first portion gives an introduction and shows how to create the primary star mask- the most critical thing of the entire process. There will likely be one more section. Kind of like the old TV days with cliffhangers! (Don't worry, it is just taking me time to produce the videos).
Below you can see the "before/after" of the image I was working with:
After I have released these tutorials, I will also eventually create a document that has a finer granularity of steps than I provide in the introduction.
A couple of other notes- these are basically first takes... and I *always* make mistakes and travel just a little off the path momentarily at times. However, this is my
style of presenting information in a way that I hope is similar to your own processing sessions at the computer.
Finally, I also intend to create a similar tutorial that tackles the challenge of the non-linear stars (you can see a few of them in the above). I will quickly go through the same steps I did above on the H-alpha data- and follow Fabian's suggestions for the non-linear ones. I didn't want to bog down the tutorial with the fickleness of the brightest stars and instead show the technique that takes care of the other 99%.
Part 1 of 2 (for this H-alpha example)
https://youtu.be/1rEBbZhsDIU-Adam
P.S. I see I misspelled the word "yield" in my very first slide! *sigh*
