›

Horizontal banding artifacts. Local Normalization?

Carlos Gil
in PixInsight
Hi.

I'm suffering in my images from some time ago of some weird horizontal banding. Unfortunately I cannnot tell when this all started, but finally decide to bite the bullet and chase it (at least trying.

The artifacts seem to impact G and B channels way more than R channel.

Checked the masters and it looks like they show up in LN_Reference. Any advise?

Please follow link to Master Light, Master LN Reference and WPBB Process Icon Zipped file.


Kind regards,

Comments

  • BlockHeadBlockHead
    Yes, I see it.
    The first question I have...is if you are using a Pedestal (as likely you should be).
    This is always the question for NB images...

    -the Blockhead
  • Carlos Gil
    Yes. I'm usign pedestal. That's the other thinh I want to explore. I'm going for auto mode. I also adjusted camera offset, maybe a bit too tight.
  • BlockHeadBlockHead
    Some cameras (you didn't say what you are using... have a "traffic" control setting that minimizes noise when sending the data over cables. Many variables.
    -the Blockhead
  • Carlos Gil
    ASI294MC. I'm getting simialr artifacts shooting mono with the 294MM

  • BlockHeadBlockHead
    The common denominator is NB imagery.
    I really think it is the pedestal. It could also be due to old darks.
    You might consider a pedestal value like 500 or 1000 to test. 
    -the Blockhead
     
Sign In or Register to comment.