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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.

 

Normalized data

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(@pcyvr)
Brown Dwarf
Joined: 6 years ago
Posts: 5
Topic starter  

After calibrating and normalizing a stack of subs, I opened one of the subs and the "l-c-r-normalised" view.  I'm not sure what I'm supposed to see (haven't been using APP for long) but was surprised by the bands of different colours running across the image.  Can someone confirm if this is expected?  I didn't see any trace of these bands in the final integration (also attached). 

SADR l c r normalised St
Sadr lpc cbg St DeNoise small

 


This topic was modified 5 years ago by pcyvr

   
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

I'm having trouble seeing the first picture, could you try uploading it once more?



   
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(@pcyvr)
Brown Dwarf
Joined: 6 years ago
Posts: 5
Topic starter  

I just updated the original post.  Thanks!



   
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

Thank you! Ok, so that doesn't look familiar to me. It should be the linear, calibrated, registered and normalised mode. I guess you had all calibration files  etc. loaded?



   
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(@pcyvr)
Brown Dwarf
Joined: 6 years ago
Posts: 5
Topic starter  

I had a MasterBias, MasterDark and BPM loaded.  I think I've narrowed things down.  If I select HaOIII-Color for the algorithm at Step 0 and Bayer/XTrans Drizzle for the integration mode in Step 6, I get stripes on the normalized data...

SADR RAW 16 1x1 300s 014 St HaOIIIColor BayerDrizzle

But selecting HaOIII-Color at Step 0 and Interpolation for the integration mode in Step 6, everything looks OK...

SADR RAW 16 1x1 300s 014 HaOIIIColor NoDrizzle


   
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

Ah, thanks for testing that. That might be an issue and I'll forward that to Mabula.

edit: Just had a discussion and this is in fact normal. It may not be super informative, but it shows the drizzling in effect per frame basically. The fact that some regions have less data is exactly why drizzling also causes a bit more noise. That's how the algorithm works and you'll get different patterns when you change the droplet size for instance. I don't use it often and never really tried this view in particular, which is why I didn't recognize it. 🙂



   
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(@pcyvr)
Brown Dwarf
Joined: 6 years ago
Posts: 5
Topic starter  

Thanks so much for looking into this.  Good to know that this is expected behaviour.  



   
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