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 am using the Trial and I have an error every time I run. The error window doesn't support copy past so I attached a image.
So what were you doing before the error, what kind of data are you trying to process and in what way? I'm assuming, creating the masters and in particular the masterflat. What happens when you don't load your flats?
Maybe I cured it. I loaded my lights, dark frames, flats, and flat bias and did a save calibrate frames. It was saving frames the it crashed. I just rebooted and I am running it again and it has not crashed yet.
I ran into a issue that I don't quite understand. I processed a collection of images that I had sorted into good and bad focus and processed only the best ones. Â Then I wanted to process the not so good ones along with the best ones. So I started another copy of Astropixelprocessor and I created another working directory and added the lights, flats, and biases and started calibration. The best frames were the first frames collected and as the night went on the focus got worse. When APP started saving the calibrated frames it asked for each file if I wanted to overwrite the frames but there were no files in the new directory. It is a pain clicking yes for an hour. What did I do wrong? I want to do as similar thing because I want to sharpen each bad frame in Matlab and then feed the the good and the sharpened into APP. I don't want to click yes 185 times.
Thanks
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Kurt
Mm, that usually only happens when the working directory is in the same location as other data with the same name. It shouldn't ask if the directory is empty, maybe you accidentally selected the old work directory?
