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! It would be lovely if APP produced a "summary report" for each integration run, much like a text version of the snazzy new Analytical Results Per Light Frame graph in 2.0 beta 17. This is useful so we have a record of what specific frames went into the integration along with useful summary data -- total integration time per filter (I understand this is Total Integration Time in the FITS header), number of subs per filter, median FWHM/eccentricity/SNR per filter, average ADU per filter, etc.
A month or so ago I went on vacation and look a ton of raw subs with me that I stacked into about 2 dozen targets. For most integrations I de-selected some subs for quality reasons, so I ended up using fewer subs in the integration than I had. My vacation brain forgot to note these down, so in many cases I don't know that I took "X subs of Y seconds for Z filter" and thus can't post that with my images. It would be useful if APP saved just such a report with each integration.
