2026-10-09 APP 2.0.0-beta48 has been released !
This is mainly a bug fix release for the reported bugs in beta47. In addition it has a significant User Interface performance improvement noticable when you need to process 1000s of images in APP.
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.
Hi, first try with Beta22 and on the final Integration Im getting this error box
Any ideas ?
EDIT by Mabula: solved in 2.0.0-beta23
Could you explain more about the type of data you were processing and the workflow?
Hi @russ-telfer,
Thank you for reporting this, I will investigate immediately and will report back later.
One question, is this occuring on Windows, or?
Mabula
Hi @russ-telfer,
Can you give more information? What kind of data are you processing? Multi-Filter perhaps? Or Multi-session, or both?
Mabula
@mabula-admin Hi Mabula
it was on a Windows 11 (fully updated) PC. Yes it was adding recent Oiii data to existing Oiii and Ha data. It first crashed when finally integrating the original Ha although it did save the stacked Ha Fits. I then tried it with just the Oiii (latest 58 subs with the original 70+subs) and it crashed about half way through ‘writing to mapper’. If I ran with just the latest data it integrates fine, so it seems to be a multi session issue
Hi Russel @russ-telfer,
I just did some tests with multi-session and everything works fine here, so I need more information and probably your data to understand what is happening.
How do you load the data of the sessions and what settings do you use in 6)Integrate to integrate the sessions, the Multi-Session options at the top in menu 6) ?
Can you upload the data here:
https://upload.astropixelprocessor.com/
username : uploadData
password : uploadTestData
Please make a folder with your name and issue like Russel-MultiSession-Integration-error
and upload there, then let me know when the upload is finished and I will look at it.
Mabula
Hi @russ-telfer,
I have found the integrator bug which you posted at the start of the topic finally !
It is triggered when you try to integrate OSC CFA (so color data that needs to be demosaiced/debayered) and you have set the Bayer/X-Trans alogrithm in 0) RAWE/FITS to no interpolation which is not the right setting for your purpose probably. Simply set it to Adpative Airy Disc and things should be fine.
I will fix the error as well now, it is caused by this unexpected processing of CFA data without actually debayering it.
Mabula
Hi @russ-telfer,
Fixed in the next release 2.0.0-beta23:
- FIXED INTEGRATION BAYER DRIZZLE BUG
If OSC data that still needs to be debayered is loaded and the user want to integrate with Bayer Drizzle ,but has set the demosaic algorithm in 0) RAW/FITS to no interpolation, an error was thrown in the Integrator stating an ArrayIndexOutOfBoundsException Index 1 out of bounds for length 1. The no interpolation algorithm is for users with OSC camera's that have the CFA filters removed from the sensor. The algorithm enables them to shoot monochrome narrowband with a camera that was previously a color camera. This exception is now caught properly with the following message:
Hi @russ-telfer,
The issue is fixed, you can try 2.0.0-beta23 which was released today 😉
https://www.astropixelprocessor.com/downloads/
Mabula
