MAY 4 2026: APP 2.0.0-beta44 has been released !
New improved internal memory controls should now work on all computers
May 1 2026: APP 2.0.0-beta43 has been released !
Improved internal memory controls (much more stable and faster on big datasets), fixed CPU image viewer, fixed Narrowband extraction demosaic algortihms.
Apr 29 2026 APP 2.0.0-beta42 has been released !
New improved Normalization engine, Fixed random crashes in integration, fixed RGB Combine & Calibrate Star Colors, fixed Narrowband extraction algorithms, new development platform with performance gains, bug fixes in the tools, etc...
Apr 14 2026: Google Pay, Apple Pay & WeChat Pay added as payment options
Update on the 2.0.0 release & the full manual
We are getting close to the 2.0.0 stable release and the full manual. The manual will soon become available on the website and also in PDF format. Both versions will be identical and once released, will start to follow the APP release cycle and thus will stay up-to-date to the latest APP version.
Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.
I'm trying to add the SII channel from a friend's SII/OIII integrated image to my integrated images of Ha and OIII. To do this I need to extract the SII from the SII/OIII integrated image he provided. But I guess because there is nothing to integrate, I think the process just quits.
So how do I do it, extract SII from a single image?
Hi @astrogee,
Thank you very much for your question.Â
Since the image is integrated, it means it is no longer Color Filter Array or CFA data that needs to be demosaiced. So you can not use an extract algorithm of 0) Raw/Fits for demosaicing.
The solution in this case is: since the integrated image has SII and O3, you can safely assume that the first channel, the red channel, of the integration has only SII data. The green and blue channels will be the O3 data. If the data is already postprocessed, the assumption is less valid of course. So simply split the channels of the integration. You can do this with the split channels option in 2) Calibrate, or you can load the integration into the RGB Combine Tool. The tool will automatically split it into R, G, B components. Say yes to load the R component, assign SII filter to it and for the 2 other channels, you can cancel them, they won't be loaded then into the RGB Combine Tool. Then load your Ha and OIII images and assing the channels correctly. Then you are already set up to make a Sii, Ha, O3 composite.
Let me know if this is clear.
Mabula
Thank you @mabula-admin. Yes, it made sense as I stepped through your procedure. Unfortunately, I realize now I can't combine data from a newtonian with a refractor. The SII resulted in red vane spikes in the combined image 😮 I guess I'll have to go out and collect my own SII data 😎 Thanks again!
