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.
Hi!
I have ventured to the Orion Nebula for the first time, and have now realized in retrospect that I do not have it in the ideal position. I would like to use the next night to shift it slightly, so that it is ideally in the center and I do not have to cut away much.
I would now be interested if I can somehow combine the data with the somewhat unfavorable section with the future with better section. And in such a way that I have the better cutout later.
Is that possible?
Thanks!
@dv_stranger Hi Dane, yes APP will be able to handle that. Note, however, that the parts that do not overlap will have less data and therefore contain more noise. The edges of the two fields may become visible as well which can be reduced by increasing MBB in tab 6.
If the overlap becomes very small you essentially are creating a mosaic and you’ll need to modify some of the parameters in tabs 3, 4, 5 and 6 but for now let’s assume that won’t be necessary.
Hi Wouter,
thank you, then I will try to increase the MBB value. I know that it then has less information at the parts with less exposuretime, but I would like to avoid hard transitions in this parts. It would be good if the sessions had a smooth transition.
I try it. Thank you!
