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.
There is a minor bug when using the mercator projection mode in 2.0.0 beta 13.
The data entry area for pixel size is not fully visible as per my screen captureÂ
Hi Kelvin @kelvin-hennessy,
That looks odd, I will investigate this in the coming days and will let you know. It is added to our issue list.
Mabula
Hi @kelvin-hennessy,
The window asking for camera calibration parameters always pops-up when you use the calibrated projective registration model.
It is a bit weird that it is not showing nicely on your monitor, which screen resolution are you using to run APP with?
I have modified it a bit now, to make the appearance more robust and not dependent on screen resolution, so it should be properly fixed now.
Mabula
@mabula-admin I have three monitors on my computer but mostly only use the main two which are 2560x1440 and 3840x2160Â (the third I dont use often is 1920x1080)
I wont be able to try a new version for a while as 2.0.0.beta13 has been problematic with a large (160 degrees of sky) Milky Way mosaic I am working on so I reverted back to beta 4 which had previously worked for me.
@mabula-admin I just did a test using 2.0.0 beta 4 on my 1920x1080 monitor and there was no problem.
Oddly today the 2560x1440 monitor was ok too, though previously it had the problem.
As soon as I move to my 4K monitor the problem occurs.
