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 out there. I am using a ZW294mc OSC camera. When I enter all the data RGGB / flats/darks/bias I land up with a green image. File is attached. If I use the same camera with a L-Xtreme filter and enter the same data + the Ha/Oiii selection I get great images. What am I doing wrong?
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@jaygpoo An OSC camera has two times as many green pixels as blue or red, which explains why the image comes out green. Does the image still look green when you enable "neutralize-BG" (neutralize background) to the upper right of the APP window?
@wvreeven Ok that works a treat and the green is gone . Where do I apply correct background calibration as is directed in the info panel of neutralize - BG .Jay ps thanks for your help
@jaygpoo The info panel talks of a tool and of post-processing so the logical place is to look in the Tools tab:
@wvreeven Sorry for being thick but thought post calibration was refering to othe software. Thanks again an I will start stacking some files that have been waiting. Jay
@jaygpoo APP contains several tools for post-processing of images. More on the way in future versions, like noise reduction.
