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
Before i sold my Qhy163c, i took a data set of the Iris nebula. I took 2 data sets (hundreds of subs) and stacked them both together in a single integration. I then sold the camera, and have since borrowed a friend's CCD, a Qhy9m. I took a data set with it and made a stack, but when i try to stack the 2 stacks together, it fails at Normalization.
I've tried all different settings, Regular and Advanced, and even setting the method to None, which i assumed would skip Normalization altogether and let me progress to Integration, but it still fails.
I've attached links to the 2 stacks below. Assuming i'm not doing something stupid, i hope it helps identify a bug of some sort.
All the best,
Ciarán.
https://1drv.ms/u/s!AhhWC3D3zU7Bqzb8NPRE6QzvEe9b?e=0k5Qke
https://1drv.ms/u/s!AhhWC3D3zU7BqzWZxdAVLNwzLtl4?e=Nx6Ncd
Hi there, yes that is going to be improved, but for now it's not possible to normalize narrowband data with broadband data, one is mono and the other is well.. broadband. 🙂 So you need to process those two independant of each other (you can for instance split the RGB channels and then load those in again and process).
