Mar 28 2026 APP 2.0.0-beta40 will be released in 7 days.
It did take a long time to have the work finished on this and it will have a major performance boost of 30-50% over 2.0.0-beta39 from calibration to integration. We extensively optimized many critical parts of APP. All has been tested to guarantee correct optimizations. Drizzle and image resampling is much faster for instance, those modules have been completely rewritten. Much less memory usage. LNC 2.0 will be released which works much better and faster than LNC in it's current state. And more, all will be added to the release notes in the coming weeks...
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.
Extracting Ha and OIII from Optolong L-extreme works fine, but not if I do Bayer Drizzle.
It wont Align properly. Is it not suppose to work or is it a bug?
/Stefan
Extracting Ha and OIII from Optolong L-extreme works fine, but not if I do Bayer Drizzle.
It wont Align properly. Is it not suppose to work or is it a bug?
/Stefan
Hi Stefan @digitaliz-se,
I think you mean that aligning the Ha and OIII stack does not work well when the stacks are created with Bayer Drizzle? The registration of the single frames for the Ha and OIII stack should not be affected by the Bayer Drizzle itself.
If aligning/registering the stacks does not work, you might have too much drizzle artefacts on the stars, preventing a good registration. Maybe you need to increase the drizzle droplet size a bit for it to work? Have you tried this?
Have you zoomed in on the stars to see if there are clear artefacts? Maybe you can show some screenshots of the data where we can see the pixels clearly?
Mabula
Sorry,
I get this kind of result after if I use Bayer drizzle. Ive tried Doplet size 0.75 and Scale 1.5 as well as Dropley size 1 and Scale 1. Both will give me this strange result.
If I simply use the Ha-OIII Color algorithm and drizzle, everything works fine.
Here are the extracted Ha and OIII using the Ha-OIII Extract Ha and OIII
Dropbox File (Private or Invalid)
Dropbox File (Private or Invalid)
/Stefan
Ive tried seveal settings now. But in vain, but I think I have found a workaround. If I use the Ha-OIII color algorithm and use drizzle, then if I load the fits as a light, I can split the channels into RGB and then recombine them into HOO by using red channel as Ha and the other two as OIII. Not really the same, but yields ok results.
/Stefan
@digitaliz-se Good that you found a workaround. What is it that you hope to achieve by using drizzle in the first place?
Ive found that drizzling is not just for making better star shapes, but also supressing noise in space.
Hi Stefan @digitaliz-se,
Also happy to hear that you found a work around, but.... Just to make sure that I understand what is happening and it will work in the next release, can you upload your light frames and calibration masters here:
https://upload.astropixelprocessor.com/
username and password: upload
Please make a folder with your name and let me know once uploaded 😉 I will make sure it is fixed.
Mabula
