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, When doing multi-session processing I can see three methods:
- Use Lights, Flats, Darks etc using multi-session in 1) Load
- Use the final integrated images as Lights and add additional Lights using multi-session
- Use calibrated frames
There appears to be limitations with #1 - I can't add more than 5 sessions, plus it gets very very long winded without the ability to load a previous session's list of files.
I recently tried #2 but I spend a long time then trying to normalise backgrounds and blending of edges and can't do in a satisfactory way
I've not tried #3 but ran into a bug where saving more than 10 calibrated frames ended up overwriting files due to filename problems (edit: Although using 1.071 doesn't seem to have this problem - so will assume for now that is fixed/an anomaly). #3 sounds most appealing - am I correct in thinking that I can then forget about my previous flats/dark flats/darks, etc and can just load these as Lights for future combination? That would make #1 much more appealing again - if the 5 session limit can be lifted?
KevÂ
