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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.

 

LNC

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(@bucket)
White Dwarf
Joined: 5 years ago
Posts: 7
Topic starter  

Mabula,

I am integrating OSC lights in APP 2.0b33.  Local normalisation correction is set to "no LNC" and the number of LNC iterations is set to 1.

So why does APP spend ages analysing the lights for the purposes of calculating 'LNC rejection parameters'?  I thought I had switched that off....?

APP LNC

 

 

Dave



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

This can be a bit confusing indeed, but it's not the same as the LNC that you turned off. This is a rejection algorithm in the console.



   
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(@mabula-admin)
Universe Admin
Joined: 9 years ago
Posts: 5056
 

Posted by: @bucket

Mabula,

I am integrating OSC lights in APP 2.0b33.  Local normalisation correction is set to "no LNC" and the number of LNC iterations is set to 1.

So why does APP spend ages analysing the lights for the purposes of calculating 'LNC rejection parameters'?  I thought I had switched that off....?

APP LNC

 

 

Dave

Hi David @bucket,

LNC Rejection is Local Normalization Correction Rejection, this is one of the outlier rejection filters at the top of 6) Integrate.

If you set the integrate setting to automatic (which is default) then this algorithm is almost always used for outlier rejection. If you set integrate to average, then you can set the outlier rejection filter yourself. Please check this screenshot that shows that I use average integration with adaptive rejection with Local Normalization rejection enabled.

Integrate LNC rejection

Normally, the analyzing of LNC rejection parameters is very fast. Like less than 1 second per image in the stack. Is it much slower on your computer?

Mabula

 



   
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