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 seem to have a total blackout....no idea what to do now. I processed yesterday raw files and ended up with L,R,G and B of course. Saved them and wanted to continue to get a final LRGB image. OK so far so good - loaded those four stacks and switched to "tools" and selected LRGB1. Now loading started and I was asked during loading what color I want to asign to Ch1, then Ch2, then Ch3 - because the stacked files are RGB. Now what to do, please? I have not idea, it is the first time that I want to contine working a day later..
Please help me and let me know what I need to do now..!
Thanks
Georg
Hi Georg,
I am assuming you have used a monochrome camera with LRGB filters and ended up with four monochrome images which you then combined in APP. I believe APP should have created an LRGB .fits image that it will save in the working folder and you should be able to open that back up in APP and finish processing in APP or save as .tiff file to finish processing in Photoshop, GIMP, etc.
Tom
Tom - thanks for your reply. I think I found out what I did wrong - I ended up with RGB stacks for L,R,G,B from mono images - that was my problem. But I forgot to uncheck the "force Bayer pattern" in the loading section - I processed an OSC image before. That resulted in the mono images to be stored as RRGB32bit and therefore when trying to make an LRGB image out of those four "mono" RGB stacks, it did not work.Â
I presume, the problem is resolved now - I do the stack again and have unchecked the forced-Bayer pattern icon...
Georg
Georg, looks like you have got it figured out. Good luck, Tom
