Sigma clipping

Image processing, astrometry, photometry, etc.
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Morten Lerager
Posts: 67
Joined: 08 Oct 2021, 14:53
Location: Denmark

Sigma clipping

Post by Morten Lerager » 20 Feb 2022, 21:48

Hi
Can AA8 combine with sigma clipping.
There are a normalization sigma clipping i dont think thats the same, as in PI, DSS or Siril ?
Last edited by Morten Lerager on 21 Feb 2022, 14:56, edited 2 times in total.
HEQ5 Pro 150PDS 60mm guide. Asiair.
Asi294mc. AA8.

Dunmunro
Posts: 225
Joined: 10 Jan 2019, 01:11

Re: Sigma clipping

Post by Dunmunro » 21 Feb 2022, 14:24

That's fully implemented in AA8 - check out the AA8 demo.

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Morten Lerager
Posts: 67
Joined: 08 Oct 2021, 14:53
Location: Denmark

Re: Sigma clipping

Post by Morten Lerager » 21 Feb 2022, 14:54

Thank's Dunmunro
I already have & use AA8. But i don't find sigma clipping.
Only sigma and sigma + sum
Screenshot stacking.png
HEQ5 Pro 150PDS 60mm guide. Asiair.
Asi294mc. AA8.

Dunmunro
Posts: 225
Joined: 10 Jan 2019, 01:11

Re: Sigma clipping

Post by Dunmunro » 21 Feb 2022, 16:17

Morten Lerager wrote:
21 Feb 2022, 14:54
Thank's Dunmunro
I already have & use AA8. But i don't find sigma clipping.
Only sigma and sigma + sum

Screenshot stacking.png

Screenshot Sigma clipping.png
See:
Tools->Preprocessing->Options

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Morten Lerager
Posts: 67
Joined: 08 Oct 2021, 14:53
Location: Denmark

Re: Sigma clipping

Post by Morten Lerager » 21 Feb 2022, 16:31

Jep, and as I wrote :
There are a normalization sigma clipping i dont think thats the same, as in PI, DSS or Siril ?
sigma-clipping.png
And it's listed as a new features in AA8
https://www.msb-astroart.com/example5.htm
HEQ5 Pro 150PDS 60mm guide. Asiair.
Asi294mc. AA8.

Dunmunro
Posts: 225
Joined: 10 Jan 2019, 01:11

Re: Sigma clipping

Post by Dunmunro » 22 Feb 2022, 03:43

Morten Lerager wrote:
21 Feb 2022, 16:31
Jep, and as I wrote :
There are a normalization sigma clipping i dont think thats the same, as in PI, DSS or Siril ?

sigma-clipping.png

Sigma Manual.png

And it's listed as a new features in AA8
https://www.msb-astroart.com/example5.htm
I read through the Siril documentation and it seems that AA8 implements sigma clipping in much the same way.

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