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.
Encountered error in module:
FirstDegreeWorker
Error message:
java.lang.NullPointerException
Cause:
null
nP.a(Unknown Source)
nP.doInBackground(Unknown Source)
javax.swing.SwingWorker$1.call(SwingWorker.java:295)
java.util.concurrent.FutureTask.run(FutureTask.java:266)
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From the terminal window <snip up to last output before pressing OK to clear message and it results in a cancellation)
18:21:07 - IMAGE CONVERTER: image conversion not needed, data is already normalized...
18:21:12 - GENERAL IMAGE LOADER: loading frame /media/kevinj/Seagate Expansion Drive/Astronomy/Captures/M101/ZWO ASI294MC Pro/2019-06-26/M101_00010_23_16_53_.fits
18:21:12 - GENERAL IMAGE LOADER: frame /media/kevinj/Seagate Expansion Drive/Astronomy/Captures/M101/ZWO ASI294MC Pro/2019-06-26/M101_00011_23_16_53_.fits was loaded successfully
18:21:12 - 6) INTEGRATE: integrate light frames: loaded frame 15 of 18 frames
18:21:12 - 6) INTEGRATE: integrate light frames: LNC: got center coordinates and area of frame 15 in integration composition
18:21:13 - 2) CALIBRATE: Adaptive Data Pedestal: disabled
18:21:13 - 2) CALIBRATE: performing calibration in 32bits normalized floats...
18:21:13 - 2) CALIBRATE: converting data to 32bits normalized floats...
18:21:14 - 6) INTEGRATE: integrate light frames: wrote frame: 15 to file mapper
18:21:17 - IMAGE CONVERTER: image conversion not needed, data is already normalized...
18:21:21 - GENERAL IMAGE LOADER: loading frame /media/kevinj/Seagate Expansion Drive/Astronomy/Captures/M101/ZWO ASI294MC Pro/2019-06-26/M101_00015_23_16_53_.fits
18:21:21 - GENERAL IMAGE LOADER: frame /media/kevinj/Seagate Expansion Drive/Astronomy/Captures/M101/ZWO ASI294MC Pro/2019-06-26/M101_00010_23_16_53_.fits was loaded successfully
18:21:21 - 6) INTEGRATE: integrate light frames: loaded frame 16 of 18 frames
18:21:21 - 6) INTEGRATE: integrate light frames: LNC: got center coordinates and area of frame 16 in integration composition
18:21:23 - 2) CALIBRATE: Adaptive Data Pedestal: disabled
18:21:23 - 2) CALIBRATE: performing calibration in 32bits normalized floats...
18:21:23 - 2) CALIBRATE: converting data to 32bits normalized floats...
18:21:23 - 6) INTEGRATE: integrate light frames: wrote frame: 16 to file mapper
18:21:26 - IMAGE CONVERTER: image conversion not needed, data is already normalized...
18:21:30 - GENERAL IMAGE LOADER: loading frame /media/kevinj/Seagate Expansion Drive/Astronomy/Captures/M101/ZWO ASI294MC Pro/2019-06-26/M101_00012_23_16_53_.fits
18:21:30 - GENERAL IMAGE LOADER: frame /media/kevinj/Seagate Expansion Drive/Astronomy/Captures/M101/ZWO ASI294MC Pro/2019-06-26/M101_00015_23_16_53_.fits was loaded successfully
18:21:30 - 6) INTEGRATE: integrate light frames: loaded frame 17 of 18 frames
18:21:30 - 6) INTEGRATE: integrate light frames: LNC: got center coordinates and area of frame 17 in integration composition
18:21:32 - 2) CALIBRATE: Adaptive Data Pedestal: disabled
18:21:32 - 2) CALIBRATE: performing calibration in 32bits normalized floats...
18:21:32 - 2) CALIBRATE: converting data to 32bits normalized floats...
18:21:33 - 6) INTEGRATE: integrate light frames: wrote frame: 17 to file mapper
18:21:36 - IMAGE CONVERTER: image conversion not needed, data is already normalized...
18:21:40 - GENERAL IMAGE LOADER: frame /media/kevinj/Seagate Expansion Drive/Astronomy/Captures/M101/ZWO ASI294MC Pro/2019-06-26/M101_00012_23_16_53_.fits was loaded successfully
18:21:40 - 6) INTEGRATE: integrate light frames: loaded frame 18 of 18 frames
18:21:40 - 6) INTEGRATE: integrate light frames: LNC: got center coordinates and area of frame 18 in integration composition
18:21:42 - 6) INTEGRATE: integrate light frames: wrote frame: 18 to file mapper
18:21:42 - 6) INTEGRATE: integrate light frames: LNC: starting Local Normalization Correction...
18:21:42 - 6) INTEGRATE: integrate light frames: LNC: Starting Local Normalization Corrections with 3 iterations...
18:21:42 - 6) INTEGRATE: integrate light frames: LNC: allow simultaneous read/analyse = true
18:21:42 - 6) INTEGRATE: integrate light frames: LNC: allow simultaneous write/apply = true
18:21:42 - 6) INTEGRATE: integrate light frames: LNC: iter 1
18:22:01 - 6) INTEGRATE: integrate light frames: LNC: iter 1 analysing light 18
18:22:04 - 6) INTEGRATE: integrate light frames: LNC: iter 1 performing LNC calculation...
18:22:05 - 6) INTEGRATE: integrate light frames: LNC: iter 1 received LNC result
18:22:05 - 6) INTEGRATE: integrate light frames: LNC: iter 1 channel 1 RMS 1.010E-03
18:22:05 - 6) INTEGRATE: integrate light frames: LNC: iter 1 channel 2 RMS 4.635E-04
18:22:05 - 6) INTEGRATE: integrate light frames: LNC: iter 1 channel 3 RMS 1.80E+308
18:22:05 -
18:22:05 - 6) INTEGRATE: integrate light frames: LNC: iter 1 applying LNC...
18:22:06 - 6) INTEGRATE: integrate light frames: LNC: iter 1 applying LNC... light 4 channel 1
18:26:12 - 6) INTEGRATE: integrate light frames: LNC: was cancelled
18:26:12 - 6) INTEGRATE: integrate light frames: integration task was cancelled
18:26:12 - 6) INTEGRATE: integrate light frames: integration task finished
Happens during Integration.
I have a number of Lights in Session 1, calibrated with Darks, Flats, Bias
I have a number of Lights in Session 2, calibrated with Darks, Falts, Bias
Integration: Integrate Per Session & All. Message pops up about LNC for the final combination. LNC 1st Degree, Iteration 3.
Tried 1.073, 1.074, 1.074.1 on Ubuntu 18.04 Bionic. Java version: openjdk 11.0.3 2019-04-16
OpenJDK Runtime Environment (build 11.0.3+7-Ubuntu-1ubuntu218.04.1)
OpenJDK 64-Bit Server VM (build 11.0.3+7-Ubuntu-1ubuntu218.04.1, mixed mode, sharing)
The lack of updates and replies from Mabula is concerning - whether personal, health or work related, all have me concerned in different and appropriate ways as to the future of APP.
Kev
Concerning Mabula; everything is fine. 🙂 I just had a meeting with him last week and he's been traveling a lot also because of the success APP is having. This creates extra work on top of the development and as a sole developer this gets kind of busy. But I've seen "the kitchen" of the development and he's working on another release as we speak. These Java errors certainly are very annoying and we apologise for you experiencing them. I hope Mabula can squash them in the next version (@Mabula-admin).
