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 not understanding what's up with my integrated image. It ends up all green. The individual frames, after normalization, look fine (I've attached one). But the integrated image looks all green (attached also). I'm using a ASI533MC and an Optolong L-Pro filter. In tab 0, I chose RGGB pattern, Adaptive Airy Disc for algorithm, and checked the force Bayer/X-Trans CFA box. I'm using the defaults for the other tabs. What am I doing wrong?
Thanks,
Mark
@mfschmitz There are strange bands to the top and bottom of the integrated result that indicate an issue with some of the calibration frames. How does the integration result look when you don’t use flats?
@mfschmitz There barely is any difference between the two images, apart from the fact that the upper left and lower right corners suddenly have become purple. What result do you get it you simply integrate the images without any calibration files at all?
@mfschmitz How did you take the darks? Were they the same exposure time, temperature, gain and offset as the lights? And taken with the same software as the lights?
@wvreeven It's the darks! Here is the integrated image using lights, flats and dark flats. Looks much better. I guess I'll be making some new darks -- the ones I was using are only a couple of months old.
Thanks for your help.
Mark
@wvreeven The old darks were all the same temperature, gain and exposure time. Not really sure why they made the problem, but I'll take some new ones and see how that goes.
