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.
Hello everyone,
I’m new to APP and just started doing Narrowband pictures. And, of course, I’m starting with a mosaic. Never did that before as well. I wanted to preview the first 3 panels I finished and ask myself, how do I separate the narrowband since I took them with a duoband filter with an OSC. I’m getting a little confused with all the file management in APP though it seems to be great. What I did so far: didn’t separate the narrowband, just for testing. Put the lights in 3 sessions, for each panel I did that night. The result was ok, it stitched a great picture together. But now I want to process the Ha and OIII separately.
If there’s a tutorial out there already I may have missed it. Maybe someone can point me into the right direction.
CS, Sven
Hi Sven @easylink,
Thank you very much for posting your question and welcome to the APP forum !
Regarding the Ha and OIII extraction of your douband filter data:
1) load your images including all your calibration frames
2) go to 0) RAW/FITS and change the Bayer & Trans CFA algorithm to one of the Ha O3 algorithms.
Ha-O3 color will make a color image a bit better than using the default Adaptive Airy Disc algo. Adaptive Airy Disc is the best algo for regular OSC data. For your data with a duo narrowband filter, use the Ha-O3 color algo for the best color result of both Ha & O3 together.
Ha-O3 mono will create a monochrome black& white result of both the Ha & O3 data
Ha-O3 extract Ha will extract only the Ha data to a monochrome results, and use extract O3 to get the O3 data.
3) To get both the Ha and O3 extracted data, set it to extract Ha and make your integration.
4) then go to 0) Raw/Fits and change the algorithm to extract O3. APP will inform you that the data needs to be renormalized.
5) Simply go to 6) integrate again and push integrate. APP will normalize the O3 data and make your O3 result.
Let me know if this helps 😉
For your information and any others doing DUO/TRIPLE/QUAD Narrowband processing, the next APP release 2.0.0-beta39 will have many improvements for processing the data. We are adding new algorithms for SII-H-beta as well.
Mabula
Thank you Mabula, for your explanations. So I start with the project from the start like I did before, just with a different algorithm?
Hi Sven @easylink,
Indeed, start at the beginning with loading your lights and calibration frames and before starting any processing, set the desired demosaic algorithm in 0) RAW/FITS first. Once you have set the algorithm, you can already check what happens with your image data when you double click a light frame in the frame list panel. If you set it to HaO3 color, then APP will show you a color image. If you set it to HaO3 extract Ha, you will see the black and white H-alpha data when you double click on a light in the frame list.
Let me know if all is clear now 😉
Mabula
