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.
I had 1.074.6 and it was working fine. I downloaded and installed 1.075 and now the application doesnt start. No error messages, nothing. Nothing in Task Manager or the event log either. Should I uninstall and try 1.075 again?
I have Java 8 Update 221 Installed. When I remove 1.075 and install 1.074.1 it starts. I ran install as an administrator
First does this apply to you?
APP can be installed without administrator rights on the Operating System (OS) and will be installed by default in the OS user's application directory:
C:\Users\[your OS username]\AppData\Local\AstroPixelProcessor
If your OS username contains non-english alphabet/cyrillic characters like for instance é, ż or japanese characters, then installation into this default location will finish, but APP won't be able to start.
If this was not your problem, go to the location where APP is installed and run it directly ie. click on AstroPixelProcessor.exe
If neither of these work then make sure you installed the correct version ie. 64 bit not 32bit.
I went to C:\Users\[your OS username]\AppData\Local\AstroPixelProcessor and the program doesnt work. No error or anything.
I downloaded AstroPixelProcessor-1.075-Windows-64bits. I didnt see an option for a 32 bit but I have Windows 10 Pro 64 bit.
Uninstalling 1.075 and reinstalling 1.074.1 starts up fine
