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.
Hello,
I use a OSC camera with a multi-narrowband filter for my nebulosity. I then use no filter (or a very weak filter) for my stars. I start by loading all of my data as two sessions (narrowband and broadband). I usually extract HA, OIII and mono (For luminance) from my narrowband data using their respective algorithms in the “load” section, so that’s three passes through APP, and then I stack my “stars” subs separately with the Airy Disc algorithm.
What I’d love are some more advanced options in the integration tab, when you’re deciding which filters/sessions to integrate. Instead of just “all”, “separate” and “all and separate” options, it would be awesome if I could just check-box the sessions/filters that I want to integrate in that particular pass. I think it would be a much simpler way to do this, vs the current “uncheck all of the frames you don’t want to integrate” method. This gets especially cumbersome when you have 2, 3, 4 filters on one image, all with their different calibration frames, and trying to make sure you have the same reference frame for each integration.
Thoughts?
Jeff
Hi Jeff @jeffreyhorne,
Thank you very much for your thoughts on this.
I think your proposal is very good and usefull indeed 🙂 We can make APP smarter to make this possible. I have added this to our ToDo list.
It will be some time before we can implement it, we first need to create 2.0 stable and some other important new features will come in subsequent releases.
Mabula
Thanks, Mabula! And thanks for making such great software!
