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.
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Topic starter
May 21, 2017 11:26
Astro Pixel Processor 1.040.1
- Fixed, when a reference is being set before star analysis, the user gets the warning that the frames need to be star analysed first. After the warning, all buttons were disabled. Also fixed, if a frame is chosen, after star analyis, that couldn't be analysed, a warning is thrown as well and buttons were disabled afterwards.
- Fixed, error in mosaic algorithm, not same camera and optics, dyn. distortion correction on, starting point for Center Of Distortion was wrong in regression calculation.
- Fixed, error in star analyis using star profile filter. Sometimes the filter caused the star analyser to find bogus stars with bad star lokations, upsetting registration robustness. Solved by 2 sanity checks in the regression results of the star profiles (number of iterations shouldn't be too high and FWHM can't be too small).
- Fixed, histogram calculation used to much memory due to inefficient calculation. Now consumes hardly any memory.
- Updated, new customized Linux DEB & RPM installers, Astro Pixel Processor can new be found in the Graphics and Science & Maths Category menus on your desktop.
- Fixed, after preview filter update, auto ddp didn't work correctly after zooming on a slider, now fixed. Also fixed several concurrency issues so a new preview filter task isn't kicked off more often than it should.
- Fixed, Bad Pixel Mapping is improved. For sensors with bad columns, strong amp glow and/or banding, the BPM calibration should work much better now. Please create a new BPM with this new version for better calibration results.
