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,
I am using APP for several years without problems, but now with the LRGB images taken with an ASI294MM Pro, star analysis fails every time, so registration fails and there is no stacking. I am using darks, bias, flats and dark flats. I tried different combinations. When I am using my ATik 460ex mono and doing LRGB imaging it works fine, but the files are much smaller as it is a much smaller sensor, so ...In order to stack the images anyhow I thought using DSS for stacking the individual color images and then do a RGB combine in APP with these stacks, but then APP crashes. I tried it with versions 34 and the latest 39, doesn't make a difference. In DSS there are >20000 stars counted with a 3% threshold, about 5000 with a 20% threshold, but DSS stacks fine. So why does star analysis fails in APP???
Hopefully someone can help me.
Chris
