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 a problem with the 1.075 version.
I don't why APP is considering all the flat subs as light. The software tries to analyse stars in the flat subs!
Regards.
Franck
The cause may be because of the name of my luminance filter called Light.
I check this problem.
regards.
My last post is the answer.
I change the name of the filter from 'Light' to 'Luminance' into my luminance subs, and into my flat sub.
Now it works.
I could change the name of the filter into the FITS header thanks to FITS4Win2 Header Data Utility.
You can find the website here :
https://astroshed.com/fits4win/f4w2hdudoc.htm
Does your capture software call these files "light" also in the FITS header? This should be corrected with the capture-software, so tell at that stage that you want the flat frames to be called flats.
@vincent-mod
Yes because i named my luminance filter Light...Â
i had to change the name of the filter in each fitsheader.Â
Now it works fine
@vincent-mod
Yes because i named my luminance filter Light...Â
i had to change the name of the filter in each fitsheader.Â
Now it works fine
Dear Franck @franck_chile ,
I am fixing this, to prevent this bug from happening in the next release.
Is there any reason why you would name a filter: "light" instead of lum/l/luminance ? Is this common practice to name fitlers "light". I am just trying to understand why you would use such a naming convention 😉
Anyway, I will make sure that APP will treat them properly next time.
Mabula
😀 I just named my Luminance filter like this at the beginning...
Now Luminance... it's not a common name.
Sorry for that.
Regards.
😀 I just named my Luminance filter like this at the beginning...
Now Luminance... it's not a common name.
Sorry for that.
Regards.
No problem Franck @franck_chile 😉
