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.
My first time processing data from the L-eXtreme filter. When I run both the extract Ha and then the extract Oiii the resulting images of IC63 are identical.
I’m using version 1.082. On the 0) tab I select Ha-Oiii extract Ha, then load the lights, flats, darks and darkflats after which I go to the integrate tab and select integrate. Once that’s done back to the 0) tab and select Ha-Oiii extract Oiii and then select the integrate tab again and integrate. I’ve tried it numerous times and the resulting images are identical.
Any insight as to what I’m doing wrong would be appreciated.
Alex
Might be related to a bug we had in 1.082. Would you mind trying the 1.083 beta?
Just as an aside I did this exact same thing last week, albeit with IC1396, and my output files were different as expected.
Oh with 1.082 by the way....
Might be related to a bug we had in 1.082. Would you mind trying the 1.083 beta?
I installed 1.083 beta and it solved the issue. Must have been a bug in my 1.082 install.
Thx Vincent!
Were you drizzling as well by any chance? That at least didn't work properly in 1.082 in this workflow.
