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,
Is there a method to combine integrated H alpa with integrated DSLR color pictures with the mozaik function.
This method I use with no probem for different integrated DSLR color pictures with the mozaik function.
When I include H alpha I get with the normalisation a Java error.
I use the gray H alpha integraton picture, or should I use the red integrated picture?.
Thanks
Regards,
Hans
Yes, the issue is that you can’t normalize 3-channel RGB data with 1-channel Ha. So what you can do is make the mosaic in RGB and in Ha separately. Then, you split the RGB channels and save those. You can then load in the R, G , B and Ha as single channel data. Register and normalize those together and save the normalized frames. These can then be loaded into the RGBCombine tool.
This will become easier in a future version.
Thanks, I understand. But how do you split a combined RGB DSLR image in seperate Channels?
Hello Hans, load RGB image, tab 2 Calibrate. At the bottom, Split Channels.
Hope this helps
Regards Dave
Sorry I don't think this is going to work
Hans, perhaps you may explain why you think it is not going to work. With only that statement it will be very hard to help you further.
Wouter
Thanks for your comment! As far as I know with mozaiks you don't need to calibrate.
I also could not find anything about this.
May be there is an other possibility for seperate the channels.
Actually what I am looking for is a work flow for achieving this
Have you tried what @Davm suggested? Because that is the workflow for separating the channels in APP. The fact that the functionality is on the Calibrate tab doesn't mean that the images get calibrated. This only happens when you add calibration frames like flats and darks.
Thanks both for your comments it has been very helpfull.
I have tried it and it worked so far. For the three pictures the channels are seperated the 4th picture is in Ha. When integration I get a grey mozaik. I understand that I have to use the RGB tool to bring back the colors in the mozaik. At the moment I don't no how. Tips are welcome.
I will also watch the tutorial about HaRGB.
Hans
That is great progress. In tab 9 choose “combine RGB” and select “HaGB 1” or “HaRGB 2” as formula. Then load the Ha, R, G and B images and press “(re-)calculate”. Note that, when you switch formula after you have loaded the images, you need to press the “new formula” button before pressing “(re-)calculate” again.
Succes! Wouter
Thanks also to Vincent! Your workflow worked perfectly. A strange thing I found is that after combining RGB I did not need to integrate. But that is no problem. The most imported thing is that it works.
