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 all,
I tried my first mosiac with the NA nebula as the subject. Four frames, SGP, RASA8, ASI294 MC pro, EQ6R, four panels 60 60 sec. exposures.
My framing isn't great, got to work on that, plus my computer takes forever to do a mosiac (4 hours). Anyway, the issue is on the right side of the mosiac, there is a bunch of swirls in the image. I also tried a mosiac of the veil with exactly the same result, so something must be set wrong somewhere....any help would be appreciated.
I have attached the image in .
JPG.
Hi,
I have exactly the same issue in Mosaic mode.
At first glance the image looks ok
But when I zoom at the lower panel, there is a large swirled area
The same region using a regular integration i.e. not in mosaic mode : no trouble at all
I hope Mabula will find time to look at this issue.
BR
Axel
How much (%) overlap do the frames have? Did you set the scale start and stop to recommended values for a mosaic for instance? Like Start at 5 and Stop at 10? You can also try to turn off dynamic distortion correction.
If what @vincent-mod says doesn’t work, try increasing the number of stars in star detection to 2000 or more and use triangles for star detection. That has worked for me in the past.
If what @vincent-mod says doesn’t work, try increasing the number of stars in star detection to 2000 or more and use triangles for star detection. That has worked for me in the past.
Hi guys,
Thanks for the support.
I used scale start 5 and stop 10 + number of stars = 2000 and it worked perfectly
My previous settings were scale start 1 and stop 10 + number of stars = 500
CS to all!
If what @vincent-mod says doesn’t work, try increasing the number of stars in star detection to 2000 or more and use triangles for star detection. That has worked for me in the past.
Hi guys,
Thanks for the support.
I used scale start 5 and stop 10 + number of stars = 2000 and it worked perfectly
My previous settings were scale start 1 and stop 10 + number of stars = 500
CS to all!
And can you post the result as well? Now I am curious!
HI all @b777capt @axel @vincent-mod @wvreeven,
Thanks for your tips Wouter 😉
When creating a mosaic, first, try to integrate the separate panels properly. Then register the integrated panels as a mosaic, then a 4 panel mosaic will not take 4 hours, rather maybe 10 minutes 😉 that should run very quickly and robustly on just 4 panels.
And yes, for a mosaic, with most data, you will need to increase the stars target to 2000-2500 to get robust results.
FYI: I am working on a big upgrade of the entire registration engine where APP will be much smarter, so then these issues should be solved automatically by APP 😉 though... there are several problems with the current engine which I will try to solve to make it much easier for the user to get good mosaics and quickly.
Cheers,
Mabula
All.....thank you...your solution worked perfectly....:-)
