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[Solved] Star reducer


(@wstumpferlgmx-de)
Molecular Cloud Customer
Joined: 1 year ago
Posts: 6
Topic starter  

Hello,

I used the star reducer with several pictures without any issue. But now I have a picture where I get following error when I increase the threshold parameter from 003 to 020 or above.

IC5146 DNAI

:

Encountered error in module:
CreateStarReducedImageObject

Error message:
java.lang.NullPointerException

Cause:
null
vp.a(Unknown Source)
vp.doInBackground(Unknown Source)
javax.swing.SwingWorker$1.call(SwingWorker.java:295)
java.util.concurrent.FutureTask.run(FutureTask.java:266)

 

best regards

Werner


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(@wvreeven)
Galaxy Admin
Joined: 4 years ago
Posts: 1636
 

@wstumpferlgmx-de Werner, what version of APP was this with? If not the 1.083 final release, can you try with that version and see if you still get this error?


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(@wstumpferlgmx-de)
Molecular Cloud Customer
Joined: 1 year ago
Posts: 6
Topic starter  

Yes, it is the 1083 final release. 

BR

Werner 


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(@wvreeven)
Galaxy Admin
Joined: 4 years ago
Posts: 1636
 

@wstumpferlgmx-de Could you upload the image to

https://upload.astropixelprocessor.com

using upload for both username and password (note that your APP credentials will not work) to a new directory called wstumpferlgmx-de_starreducer? Then I'll ask Mabula to have a look. 


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(@wstumpferlgmx-de)
Molecular Cloud Customer
Joined: 1 year ago
Posts: 6
Topic starter  

@wvreeven

Thank you, upload is running. 

Nice weekend

Werner 


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(@mabula-admin)
Quasar Admin
Joined: 5 years ago
Posts: 3099
 

Hi Werner, @wstumpferlgmx-de

Thank you for the upload, I will be testing your image in the next couple of days and will make sure it is fixed 😉

Mabula


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(@mabula-admin)
Quasar Admin
Joined: 5 years ago
Posts: 3099
 

Hi Werner @wstumpferlgmx-de,

I have fixed your error, thank you very much for reporting it:

https://www.astropixelprocessor.com/community/release-information/astro-pixel-processor-1-083-2-preparing-release/

  • FIXED, STAR REDUCER TOOL, if a too high kappa was set for the noise threshold, the tool could produce a Null Pointer Exception, because no stars were found... This can happen quickly when non-linear data is loaded into the tool.
FIXED TOO HIGH KAPPA NOISE THRESHOLD

Your error happens quickly with a moderate kappa value for noise, because you are loading non-linear/already stretched data into the tool. The tool will work much better of you load linear/unstretched data into it ;-). (The noise threshold slider assumes linear data.)

Mabula

 


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