2026-10-03 APP 2.0.0-beta47 has been released !
This is a very big release... many code optimizations/rewrites, many parts of APP are much faster and more precise, especially star analysis and registration are much faster ! Big mosaics will go much faster 🙂
And we introduce a new preview filter, which includes the new Adaptive Deep Sky Stretch and a General Levels Stretch, this has been long over due. The old preview filter (the panel on the right side to stretch and preview your data) has not been updated for a couple of years and it is a critical part of any APP session.
Adaptive Deep Sky Stretch or ADSS is a much more intuitive stretch algorithm. It is also color preserving (which is a great new addition in itself ! ) which means that the highlights are no longer bleached, color is maintained from the linear data while stretching. You can simply stretch your data using the sky background level and signal width sliders which work much easier and more intuitive. You no longer need to fiddle with the old complicated sliders with zoom buttons. All the zoom buttons for the sliders are made redundant. And you can enter slider values in the slider value fields yourself. I will make a youtube video in the coming days to explain and fully introduce ADSS. Once the video is ready, it will be highlighted on the forum.
RGB Combine upgrade !. The RGB Combine Tool has been rewritten mostly. The tool is faster and easier to use and most importantly, the Luminance slider to inject a luminance channel or channels into the RGB composite is now working correctly. It no longer bleaches the RGB colors. Combined with the new ADSS preview, you will get much better and easier great composites with great color! I will also explain this in a new youtube video.
2026-10-03- UPDATE FROM MABULA
I am glad to announce that I am finally fully healed, my energy and strength are really back now !
In the past 3 weeks while recovering, I have prioritzed the release of 2.0.0-beta47. So much work has accumulated into this release that it needed to be tested extensively, but also it needed to be available for all of you. Unless a big problem is reported for this release, I expect it will be the final release, finally !, before the official 2.0.0 release.
I have tried the new beta 47 on a set of data and it produces a blank integration. Â This is not a stretch issue, when I check the underlying data all pixel values of the integration are zero. Â I took the exact same data set and exact same calibration frames back to beta 46 and it produced a good integration. Â I am running Apple silicon and used a set of Oiii lights integrated with BPM, Bias, Flats, and Dark Flats
Hi Mark, @marksavan
Thank you very much for reporting this. Can you double check what normalization reports for noise and SNR? Is it all zero? I am in the process currently to fix some issue with beta47.
Please feel free to upload your data here, so I can make sure it is properly fixed in beta48.
https://upload.astropixelprocessor.com/
username: uploadData
password: uploadTestData
Please make a folder with your name and issue like : Mark-BlackIntegration
and upload the data there, then I will test and fix a.s.a.p. 😉
Mabula
Mabula,
I have uploaded files to the folder named Mark-blackIntegration. Â I have included the integration file and the data file for both beta 46 and 47 as well as two screenshots from beta 47. Â It seems that the issue is with normalization. Â I don't know if I need to change a setting for beta 47 but the data and the calibration files used are the same for both 46 and 47
Hi Mark @marksavan, thank you very much for your upload.
I have found and fixed the problem already using data from 2 other APP users. I will release 2.0.0-beta48 as soon as possible with the fix 😉
- FIXED Normalization issue that gives 0 noise, unlimited SNR and a completely black integration Several users reported issue with normalization, giving 0 noise and a completely black integration. This has been fixed.
Mabula
