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 process my images with APP, and I discussed this with members of my club who all use "pixinsight"
So I submitted to them one of my M16 roughs made with a 350D digital camera without filters
Attached are the JPEG images of M16
First, my image "M16 mon image "
Secondly, there's the two "M16 pix" images they sent me back.
They raised some questions:
-Am I the one who didn't understand everything about the processing?
-Is it even possible with APP to have the same result and how?
-Where could I find a formation in French?
Ps if the answer could be made in French that would help me a lot
Merci par avance
@jl-gozzi Salut Jean-Luc. Je suis desolé mais je ne parle pas Français très bien.
It is very hard to answer your questions without more information. What kind of data are we looking at? Did you use flats, darks, dark flats, bias? With what version of APP did you process the raw data? Is this the integration result only or did you do any post-procssing?
The same questions for the image processes with PixInsight.
Also, it isn't exactly clear to me which are the PixInsight images and which is "ton image". Can you please indicate which is which?
Please be as verbose as you can in your replies.
To my best of knowledge, there is no APP documentation in French, sorry.
Salut
J'ai rien compris à ta question... ni ce que tu veux faire ???
Pour les formations en Français sur APP :
Déjà des tutos sur mon site web :
http://www.astro-photographie.fr/
Ensuite, il y a des formations à l'association AIP (mais le stage de février est annulé cause covid). Il y a néanmoins les conférences e-learning.
https://www.astro-images-processing.fr
a+ philippe
@ccd2048
Bonjour tout d'abord merci pour ta réponse aussi rapide et pour les liens que tu m'as donné
je vais les étudier en détail mais une petite question me viens à l'espris, il faut que je les enchaines dans quel ordre?
puis-je me retourner vers toi si je n'ai pas tout compris?
merci beaucoup
Thank you for your answer and for putting a sentence in French
First of all, when I click on the photo, the name appears on the top left. Is it the same for you?
My photo is called "M16 my image" it comes from two sequences made with a canon 350D without filter:
1 st sequence : 31 Dark 30s 800iso / 30 flat 1/4000 s 800iso / 60 offset 1/4000s 800iso / 196 images 30s 800iso
2 nd sequence : 31 Dark 30s 800iso / 30 flat 1/4000 s 800iso / 31 offset 1/4000s 800iso / 201 images 30s 800iso
for the treatment I put all in APP, the 62 dark, the 60 flats, 91 offsets and finally the 397 images and then I made the following treatment:
Under the RAW/FITS tab you need to select RGB, Adaptive Airy Disc and check force CFA.
Under the LOAD tab you can load your images from your working directory: light, flat, dark and bias.
Under the CALIBRATE tab, check the create Bad Pixel Map box and then click on calibrate.
I then integrated my images at the end I saved the images that came out of APP in Fits and in Jpeg
it's this fits file that I gave to my colleagues and with pixinsight I output the two images named "M16 pix OG" and M16 Pix CH
what I wanted to know is when you get your raw what are the next steps in APP to process the image.
thanks in advance
@jl-gozzi Thanks for the explanation. I hadn't clicked on the images yet. It is clear to me now.
what I wanted to know is when you get your raw what are the next steps in APP to process the image.
The PixInsight images have been cropped which you can do in AstroPixelProcessor with the "batch crop" tool in the Tools tab. After that you can increase the color saturation of the image by loading it in the i age previewer in APP (click the name of the image in the image list and it will be displayed) and then enabling saturation in the tools on the right hand side. the SAT slider then will become active and you can drag that to the right to increase color saturation. You may want to do a light pollution correction (also in the tools tab) as well after cropping and before increasing the color saturation.
This is why I asked what post-processing was done by the two members of your club in PixInsight. You should be able to do much of what they did in AstroPixelProcessor as well. I don't think they did a DBE (DynamicBackgroundCorrection with is the PixInsight equivalent of light pollution correction in AstroPixelProcessor) for example. But only they can tell you.
@wvreevenmerci pour votre aide je vais tester cela
