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,Â
not being able to go out (curfew) I tried from my balcony, in the city center (not even scared lol)
but I end up with a problem, when I add the masters (dark, flat, darkflat, bias) I have a very bright halo around my image?
I tried to redo the masters differently and it's the same.
I put 2 photos, just a few images to get an idea.
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thank you.
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@yeantbron Hi,
The first image shows a very strong gradient towards the horizon and possibly you can process that out by carefully applying Remove Light Pollution in tab 9. Increase the saturation of the image a lot and start putting a few small boxes along the edges of the image. Then click calculate and see what the result is. Slowly work your way to the bottom center, where the light pollution is largest.
How did you produce the image with the dark circle in the center and the bright edges?
Thank you Wouter, yes i have a very large amount of light pollution,Â
the image with the bright edge is with dark/flat/bias/darflat, the other one is the integration without dof.
@yeantbron What happens when you integrate the lights without flats? Perhaps the flats are the cause of that.
@wvreeven it's in the process of integration, I would put the result when it is finished, I just put dark, bias and bpm.
well, the integration has crashed, back to the desktop, I've been trying for 3 days but each time with the dof it crashes. (only one succeeded but with only 20 images for the test of the post above, maybe my computer lacks power), I tried with 1.082 and 1.083beta1
