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.
EDIT by Mabula: this FITS READ error will be fixed from release 2.0.0-beta35.
Hi,
iTelescope.net has is providing FITS files for free (monthly "Premium Image Set").
I can not open the data provided in February and March anymore with APP.
When loading the files, this error occurs:
***********************************************
Astro Pixel Processor - 2.0.0-beta34
Oracle GraalVM 23.0.2+7.1 - Windows-64-bit
Encountered error in module:
FileDetailListUpdater
Error message:
java.lang.NullPointerException: Cannot invoke "String.contains(java.lang.CharSequence)" because "<local14>" is null
Cause:
Cannot invoke "String.contains(java.lang.CharSequence)" because "<local14>" is null
oj.a(FitsImageDetails.java:200)
ol.a(ImageDetails.java:76)
oi.a(FileDetailListUpdater.java:727)
oi.doInBackground(FileDetailListUpdater.java:39)
***********************************************
Seems the FITS file do have something in the header which is not recognized by APP.
This happens with APP v2 beta29 and also with the current one (beta34).
Â
Thanks for any hints.
Jean-Marie
Â
Dear Jean-Marie, @jmwill
Thank you very much for reporting this issue.
Can you upload some of these iTelescope.net files here? I will then test and fix as soon as possible 😉
https://upload.astropixelprocessor.com/
username: uploadData
password: uploadTestData
please make a folder like : Jean-Marie-iTelescope-Fits-issue
and upload your files there and then let me know once uploaded. I will look at them as soon as possible.
Thanks,
Mabula
Â
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Hello Mabula,
thanks for the fast reaction.
I have uploaded a few fits files from two different data sets into the specified folder.
Thanks,
Jean-Marie
Hi Jean-Marie @jmwill,
Thank you very much for the upload, I will test and fix as soon as possible and will give you an update once fixed.
Mabula
Hi,
iTelescope.net has is providing FITS files for free (monthly "Premium Image Set").
I can not open the data provided in February and March anymore with APP.
When loading the files, this error occurs:***********************************************
Astro Pixel Processor - 2.0.0-beta34
Oracle GraalVM 23.0.2+7.1 - Windows-64-bitEncountered error in module:
FileDetailListUpdaterError message:
java.lang.NullPointerException: Cannot invoke "String.contains(java.lang.CharSequence)" because "<local14>" is nullCause:
Cannot invoke "String.contains(java.lang.CharSequence)" because "<local14>" is null
oj.a(FitsImageDetails.java:200)
ol.a(ImageDetails.java:76)
oi.a(FileDetailListUpdater.java:727)
oi.doInBackground(FileDetailListUpdater.java:39)***********************************************
Seems the FITS file do have something in the header which is not recognized by APP.
This happens with APP v2 beta29 and also with the current one (beta34).
Â
Thanks for any hints.
Jean-Marie
Â
Hi Jean-Marie @jmwill,
Good news, I have solved the issue. The files will now work properly from APP 2.0.0-beta35. I aim to release 2.0.0-beta35 before March 15th. I will try to let you know once the updated version is released, but you can check the forum and our downloads page to see if beta35 has been released 😉
- FIXED FITS READ error with MaximDL/iTelescope files
As reported in this thread https://www.astropixelprocessor.com/community/main-forum/error-encountered-when-opening-fits-files/#post-32412 , loading a fits file created by MaximDL from iTelescope gave a NullPointerException in the FileDetailListUpdater module. The error is caused by a FITS WRITE error in MaximDL we think. The problem files have 2 FITS HDU/Headers with the exact same content and image data and the 2nd header misses a required FITS tag XTENSION to indicate what kind of data the header has according to the FITS specification. APP will catch this error now and will still be able to read and process these files. Please note, because these files have twice the exact same image data, they are also twice as large as they need to be. We have informed iTelescope.net about this issue.
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You are most welcome !
