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'm having crashes and or errors in the last 2 days. Previously with release 29, no issues until yesterday. I downloaded release 30 and no change. Some errors if I actually get to integration result in the program closing. I'm using a Windows 10 PC.
One frequent error is as follows:
Encountered error in module:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
FileDetailListUpdater
 Error message:
java.lang.IndexOutOfBoundsException: pos < flushedPos!
Â
Cause:
pos < flushedPos!
java.desktop/javax.imageio.stream.FileImageInputStream.seek(Unknown Source)
oX.a(BitReader.java:71)
oZ.seek(BufferedRawImageInputStreamImpl.java:128)
oO.<init>(Exif.java:73)
Â
So what could have changed overnight?
Edit by Mabula: below new topic added here, since it is the same topic.
Â
Today I uninstalled APP and then reinstalled version 29 (since it was the last working version).Â
Loaded some lights, darks and bias files. Upon "create masters & assign to lights" it ran for a few seconds and crashed, closing the program.Â
I checked the log file and there's nothing that stands out.Â
I also tried again using the CPU instead of openG4L with the same result. Tried again dropping the theads to 6 from 8 with same crash.Â
Maybe it's my data that's corrupt? Is there anywhere I can download a sample file for lights, darks and bias?Â
Hi Colin @astrocirrusp,
Thank you very much for reporting this issue.
The error:
Encountered error in module:
FileDetailListUpdater
Error message:
java.lang.IndexOutOfBoundsException: pos < flushedPos!
Cause:
pos < flushedPos!
java.desktop/javax.imageio.stream.FileImageInputStream.seek(Unknown Source)
oX.a(BitReader.java:71)
oZ.seek(BufferedRawImageInputStreamImpl.java:128)
oO.<init>(Exif.java:73)
indicates to me that one or more files that you load into APP are probably corrupt somehow, especially since before a couple of days ago all was fine right?
Can you download and try this dataset from this tutorial: https://www.astropixelprocessor.com/complete-lrgb-tutorial-of-ngc292-the-small-magellanic-cloud-by-christian-sasse-itelescope-net-new-version-app-1-081/
The link to download the data is here: https://apastropixelprocessordl.s3.eu-central-1.amazonaws.com/iTelescopeNGC292Tutorial/RawLights-CalibrationFrames.zip
Can you load and process these files without issues? If so, then it is vey likely that one or more of your files are corrupt. If not, then please let me know. I will then give you upload instructions so I can test what is going on with your data.
Mabula
Thank you for your quick reply. You were correct, my data is corrupt. I loaded your sample data and it works like a charm! Our recent cloudy skies have not allowed me to get out and collect new data so I was unable to test.
I understand your workload is huge right now and appreciate your help on this issue.
Cheers...Colin
