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.
This is the second time that this happened.  I shoot color binned 1x1 with an ASI1294. On the 0) tab I set my Bayer pattern, choose the algorithm (HA-OIII color, since I am using the Triad filter) and when integration is complete and I look at the integrated image the image is completely bright green.  Not a green cast, completely saturated bright green.  If I change the 0) tab to 'not supported' and uncheck the 'force Bayer CFA' the image is grayscale.  This happened once before with another target taken with the ASI1294 camera.  Any thoughts on what is the problem.  I know that binned 1x1 so I did not destroy the color pattern.
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This happens when you don't assign data to R, G and B. So, I always assign Ha to Red, OIII to green and blue.
edit: However, if you really chose Ha-OIII color (please double check) I think it should already do that...
So, how do I assign Ha to Red and OIII to blue and green?
I always use the other algorithm (HaOIII-extract Ha and HaOIII-extract OIII), then correct and make the data how I want it for both signals and then combine them in Combine-RGB, where I do the assignment.
I think you do need to "force CFA" as it's a color sensor but not identifying itself as such. And that is needed for the proper seperation of the channels. If you continue to have an issue, please send a few subs over for me to check the signal.. I'll give you server details if you indeed still have the problem.
So, I'm still having problems that I can't figure out. Â Here is an image that I processed
set to RGGB, Ha-OIII-color and forced CFA. Â as you can see it comes off as color. Â I did no further processing this is just the integrated frame. Â Here is data from the next night,
, the exact same settings. Â As you can see it is mostly B/W but if you look closely there are color artifacts that can be seen. Â Do you have any ideas about what I'm doing wrong? Â FYI, IÂ also used the default "Adaptive Ariy Disk"Â and I get the first data set in color and the next night is still in B/W
Thank you,
Walter
Ok then, must be the data then I think. But to be sure, you can send the subs over to our APP server, login/password: appuser
Please create a new directory with your name on it.
Okay I just finsihed loading my files, I'm sure are you are correct it has somthing to do with my files. Â I wonder if it is a problem with my capture software and the ASI1294 camera. Â I use a bin of 3x3 for platesolving but 1x1 for image capture. Â I wonder if the images are being captured at somthing other than 1x1?Â
Shouldn't cause this issue no, if you upload some of the subs where you didn't have this problem and some where you do, I can probably get down to the cause. I'm downloading what you uploaded now.
Okay, I just uploaded a folder of subs that work of the same target.Â
I use Prism Pro.  I really don't know what I'm talking about 🙂  I was wondering if its an issue with the ZWO camera buffering first and then Prism downloading it?  I really don't use PixInsight, but when I try to process the ASI1294 images I captured with Prism I get an error message something about improper geometry?  That got me thinking that it was something about files are being mishandled. Â
Well, I'dont know either. But I think I got my problem solved last night. My images turned out monocrome after processing. Seems like if I tick of Force CFA check box I do get color after all. I use SGP btw for capturing.
Hope you get your problem solved soon. Best of luck.
Helge
Thanks for the suggestion but I have tried to that, checking the force CFA does nothing in this case
WalterÂ
I'll have a look at it in the coming days, bit busy for analysis.
@vincent-mod
Hi! Â Just checking in with you. Â Do you have any new thoughts on what might be the problem that I having? WalterÂ
Hi Walter,
Sorry for the delay, I'm investigating the data now.
I don't mean to bug you but this same problem has occurred with other data sets taken with the ASI1294. Â Any progress?Â
Hi Walter,
No worries, problems need to be solved so that's fine. I did have a look, but I'm not getting color either. There however doesn't seem to be anything strange going on and I haven't heard about this from anyone else. My feeling is that it might have something to do with the processing just before you load them into APP, I can't think of anything else at the moment.
the problem with your hypothesis is that I did not do any pre-processing.  These are right off the camera. As I said, it has happened before with other data sets taken with the ASI1294 camera. My hypothesis is that something is happening to the images when they are buffered by the ASI camera. FIY, Pixinsight does not like the images either.  This is very disappointing.Â
Right, so then it must indeed be a data issue I'm afraid. Is it still under warranty? Maybe ASI has more information on it as well?
