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,
Last week I took a series of fotos of NGC281. The next night I did NGC281 with dual nawwor band filter.
Next day I noticed, that I can stack the RGB-lights without a problem, but when I try to stack the DNB-lights, APP closes without a message while the end phase of integration.
I thought the split to Ha might be the reason, but even with default setting, without any correction frames, it's still closing. Then I reduced the number of selected lights. 3 light of the center of the night could be stacked. But with the first 3 lights of the series it closed as well.
I prepared an archive with the first 3 files and the error-log, but it's 50MB.
The error log says, Java was out of memory. So I raised from 24 to 30 of 32 GB, but it still crashed.
Greetings
Marc
@catweazle74 Marc, can you upload your files to
https://upload.astropixelprocessor.com/
using as both username and password: upload
Please create a directory called catweazle74_crash and put the files in there. Let me know when the upload is done by replying to this message and I will have a look.
@catweazle74 Thanks Marc. I will need calibration files (dark, dark flat, flat, bias) as well. Can you please make sure that you upload a few of each so I can try a complete integration run? Thanks!
@wvreeven Ok, I uploaded a packet of 3 samples of each type. If you want to, I can upload the whole set on one drive.
I try integration 7-8 times with the full set of lights and calibration files. At this point I hardly missed a "Save project" button, because I had to start from scratch each time.
Later I skipped all calibration frames and only tryed to integrate some lights. Finaly I just loaded three lights and hit "Integrate"
Over two day I set the computer to hibernate, but did not reboot yet.
Meanwhile I tried lights of other sessions and had no problem.
@catweazle74 Hi Marc. I managed to integrate the three Lights using all calibration files that you uploaded without any issues whatsoever:
Can you try yourself with the three files and see if that works for you? FYI I loaded the three lights, flats, darks, dark flats and bias and then went straight to tab 6 and clicked the integrate button. No other changes in APP.
Well, yesterday it crashed with lights of an other session that already worked, too.
So, today I rebooted at first. And now everything is ok. The samples worked as well as the whole set. Seems like java needed a clean start.
Thank you for your help!
