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 all.
It's probably silly but I've already repeated it twice with the same result. I have done an integration with lights of four sessions with the masterflats and masterdarkflats corresponding to each one and with one masterdark for all four.
The shots are made, in all cases, with an ASI 1600MC that produces images with a size of 4656x3520 pixels, as you can see in the screenshot.
BUT the final integration, as can also be seen, has a size of 4737x3583 pixels.
The lights are CMOS (colour) and I have used the Ha-OIII extract Ha algorithm.
I did a fifth session with UV filter instead of L-Extreme and in that one I get the integration with the right size.
Any ideas, please? I can't combine the UV shots and the ones with the narrow band filter because they are different sizes
Tech info: Mac running Catalina and APP 1.083 - beta 2
@anofeles The larger size of the integration result is caused by the individual frames not exactly lining up which introduces a shift with respect to each other, adding pixel rows and colums to the sides. In order to combine the UV and L-eXtreme integration results, load them both as lights in tab 1 and go to tab 4 to register them against each other. When done, save the registered frames at the bottom of tab 4. That will produce two images of the same dimensions.
Success! That's what it was.
Gracias, Wouter.
