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.
I'm trying to do a registration of a four panel mosaic but it seems to hang at 1%. I'm using the trail APP 1.059
I use dynamic distortion correction, registration mode : mosaic, Registration model: projective and scale stop: 10.
Files I'm trying to register: https://we.tl/S2VPh3WZSn
Anyone who could help?
Â
Thanks in advance Irving
Â
Hi Irving @ipieters,
I immediately passed registration 1% and the mosaic has been calculated very quickly using a registration precision of only 0.12 pixel 😉
Perhaps it's informative to know what settings you used in 3) Analyse stars ? How many stars did APP detect?
Mabula
Â
Hi Irving @ipieters,
I have tried different settings in 3) and 4) but I never get the mentioned problem.
Does it happen each time when you try to perform registration?
Mabula
Â
 Hi Irving @ipieters,
I have not attempted to create a mosaic in APP up until now but just to reiterate what Mabula has said, I just loaded your data & followed APP's prompts and recommendations, very quick & very easy.
Here's an unprocessed output:
Thanks for the replies. Seems to be a PC specific problem as I've installed APP on another machine and it running like a charm.
Once I decided to buy APP (I'm running the trail) I'll reinstall the PC and give it another try.
Hi Irving @ipieters,
Okay thanks for the feedback, could you share the specifics of the PC on which it stalled?
Operating System?
Videocard and driver version?
cpu and memory ?
The reason I ask, is that 2 other APP users have reported similar behaviour on their Windows machines and at the moment it's unclear why it occurs. The more information that I have the better I will be able to find the cause 😉
Looking forward to your fully processed mosaic!
Mabula
