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.
Dear Mabula,
I'm taking binned RGB images for my LRGB composites. In the whole processing chain at which phase do you advice to upscale the binned RGB frames? At the beginning, or at the end, after tweaking the combined RGB image? Which interpolation algorithm would do the best job on an upscale?
Thank yo for your answer.
Joseph
Dear All,
Is there anyone with an answer? I'm quite new to this application and I probably miss something, maybe a feature or just a simple checkbox which gives a simple answer to my question. What you guys do when your RGB frames are binned? What is your workflow?
Thanks,
Joesph
Hi Joseph,
When I have processed binned 2x2 RGB subs with unbinned L subs, I have just loaded all the frames into APP (with appropriate binned and unbinned calibration frames to match) then processed them all in exactly the same way as if they were all unbinned subs.
When you get to 4) Register APP will I think have selected an unbinned frame as the reference image and will correctly align the binned and unbinned subs.
During Integration I assume APP uses drizzle method to upscale the binned subs to match the dimensions of the unbinned.
I've also successfully processed binned and unbinned RGB subs in the same integration - no problem.
https://www.astrobin.com/394914/M/?nc=user
Hope this helps
Mike
Yes, it does, and it makes sense as well. Thank you for your answer.
following ...
May I ask what drizzle parameters are set at the 6) integrate stage?
Thanks
Tim
Hi,
Mabula has written an excellent summary about principles and pros/cons of Drizzle on this forum post:
- What is Drizzle and when can I benefit from it ?
Unless you are experimenting (its always interesting to try things) or have specific reasons to choose otherwise, stick with the defaults.
Mike
PS Above I said 'During Integration I assume APP uses drizzle method to upscale the binned subs to match the dimensions of the unbinned.' On reflection, I think I should more correctly have said 'I believe APP uses an interpolation technique (Lanczos 3) to to upscale the binned subs to match the dimensions of the unbinned subs.'
