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Cross Hatching on Image

Astrophotography Cassegrain CMOS SCT
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#1 sandconp

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Posted 25 May 2022 - 12:59 AM

What causes this cross pattern on my Image?

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Edited by sandconp, 25 May 2022 - 01:01 AM.


#2 sharkmelley

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Posted 25 May 2022 - 01:16 AM

Does a single debayered exposure show any pixel level crosshatching when you zoom right in?  If so, then it is likely that you need to use a different debayering pattern i.e. RGGB, GRBG etc.



#3 Der_Pit

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Posted 25 May 2022 - 07:12 AM

...else my suspicion would be drizzling with too small number of exposures (or with insufficient dither).



#4 ChrisWhite

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Posted 25 May 2022 - 07:33 AM

It could be an interpolation artifact. I assume you were using lanczos-5 or auto for registration algorithm?

Try cubic-b spline instead.
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