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UPDATE FROM MABULA

I have had a very rough 2 months unfortunately health wise. I was struck 3x in a row with bacterial infections. The second infection occurred  after a routine hospital checkup and I became very sick. I had to rest and take a lot of antibiotics. Once I was recovering and restarting work 1 month ago, I again became sick. The infection was not yet gone, so even more antibiotics and rest was needed. Needless to say, it took a lot of my energy and I needed a lot of rest.

 

Finally, the infection is really gone and my energy is coming back step-by-step now and I have started work again. I am terribly sorry to have kept you waiting for support. I will address all outstanding questions and e-mails step-by step and will be on the forum daily from today.

 

APP 2.0.0-beta47 will come soon as well, a lot of work was already completed before I became very ill, so the release is also nearly ready for you. Beta47 will be much faster actually. Many workflows will be more than 2x faster, mosaics can even be 10x faster than before because registration really received a major boost... all compared to beta46.  Before I release it, I will make sure that everything is working properly and then I will release it.

How do I need to change my kappa values for hot and cold pixels to fix this?

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(@lead_weight)
Red Giant
Joined: 9 years ago
Posts: 34
Topic starter  

Despite creating a new BPM and masters for this imaging run, I cannot seem to get all the hot and cold pixels removed. How do I need to change the kappa values to remove more hot/cold pixels?

Screen Shot 2019 10 20 at 10.00.41 AM


   
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(@leuthold)
White Dwarf
Joined: 9 years ago
Posts: 14
 

@lead_weight

How many subs in your stack?  I would sometimes still get hot pixels even after calibration so a few years ago, I started dithering all my subs and use Outligher Rejection with LN MAD Winsor clip with the default values to clean up the stray hot pixels.  It works well.

Mike

 



   
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(@lead_weight)
Red Giant
Joined: 9 years ago
Posts: 34
Topic starter  

Ahh, great to know. I have several hundred subs. I do dither, but had not used LN MAD Winsor clip. I’l try that.



   
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

With dithering, many should be removed already given the dither is big enough. Are your darks etc at the same temperature etc as the lights? For the BPM it's also nice to include a very long exposed dark. A mild sigma clipping would then be enough to get most if not all to be gone.



   
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