MAY 4 2026: APP 2.0.0-beta44 has been released !
New improved internal memory controls should now work on all computers
May 1 2026: APP 2.0.0-beta43 has been released !
Improved internal memory controls (much more stable and faster on big datasets), fixed CPU image viewer, fixed Narrowband extraction demosaic algortihms.
Apr 29 2026 APP 2.0.0-beta42 has been released !
New improved Normalization engine, Fixed random crashes in integration, fixed RGB Combine & Calibrate Star Colors, fixed Narrowband extraction algorithms, new development platform with performance gains, bug fixes in the tools, etc...
Apr 14 2026: Google Pay, Apple Pay & WeChat Pay added as payment options
Update on the 2.0.0 release & the full manual
We are getting close to the 2.0.0 stable release and the full manual. The manual will soon become available on the website and also in PDF format. Both versions will be identical and once released, will start to follow the APP release cycle and thus will stay up-to-date to the latest APP version.
Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.
Hi, apologies if this has been answered in another forum but I cannot find the answer. I am new to OSC processing in APP. I keep getting a significant green cast across the whole frame in the final integration regardless of what setting I choose in step 0, I have checked and unchecked force cfa devayer, tried both AAD and Ha-Oiii-color algorithms and they show no diff with strong green cast. I can however use the Ha extract and the Oiii extract algorithms successfully and later combine them into HOO bicolor but I can’t understand why I am getting that strong green cast. See attached photos. I have also included the Ha and Oiii separate integrations which seems fine in mono.
@7imlooigmail-com Hi Tim, do you also get the green cast when you enable Neutralize-BG in the upper right? What camera are you using? And what software to shoot the images? What calibration files?
@wvreeven I haven’t tried to check the neutralize-BG in the normalization step 5 yet, will try that, am using darks, flats and dark flats cal subs. Using asi183MC pro and acquisition in asiairpro. In asiairpro the subs were not showing green cast in RGB tho see photo attached
@7imlooigmail-com I didn't mean Neutralize BG in tab 5 but the checkbox once the integration is done. See the checkbox that the red arrow is pointing to in this screenshot:
@wvreeven ah that fixed it, thank you. Is this something we need to do all the time with duo-narrowband filters? Just trying to understand where the green is coming from, cheers
@7imlooigmail-com To be honest, I am not quite sure myself. OSC have twice the amount of green pixels than red or blue and that certainly accounts for part of it. But the OIII signal is much fainter than Ha so I'd expect a more or less neutral background to begin with. But I see it in my pics as well so perhaps there is a lot more green noise than red or blue which causes this effect. In any case, I'm glad that neutralizing the background like that worked.
