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,
Just trying my very first data reduction with APP and run in to a problem... Loaded up lights, biases, darks and flats and hit calibrate. Biases and darks produce nice master frames but the flats stops with an error:
Index 16458626 out of bounds for length 16453632 in NormaliseCFAChannels
and no master flat is produced. 16453632 is the (full) size of my sensor (4992x3296, Fuji X-Trans in a Fuji X-T10 camera) so why is it trying to read/write outside that array size? Can't get any further without a flat calibration...
Thanks in advance for help.
Should add that I'm using V2.0.0-beta22 on a Mac M1. Tried beta20 and the same problem.
@michaelejones Hi Michael, did you use the same software for the flats as for the calibration data? If not then that may be the cause.
Yes, I used the same software for everything - have also tried using different data sets (but all from the same camera) - can't avoid this error in making the master flat.
Would you be able to upload the calibration files (also for bias/darks) to our server? I can then investigate.
Uploading the data now - just three of each of flats, darks, biases and lights, hopefully this is enough to show the problem.
many thanks,
Mike
Apologies for the delay, I just ran your provided data and it worked fine. What APP version are you using?
I'm using 2.0.0-beta22 (Apple M 64-bit on a MacBook Pro M1). I was initially using pretty much the default settings for everything. I found a workaround which is to select Calibrate -> MasterFlat -> normalize=none. Any other option for normalise leads to the problem I described.
Strange, like I mention I had no issues. So with the data you send to the server, that exact data, you also get this issue? Just to be sure, reset the settings in the CFG menu on the top left of APP for all tabs, preferences are now saved by default so you may have a settings that's still on something different perhaps?
