Username:

Password:

UKAI is moving to Facebook

Author Topic: Drizzle comes to Pixinsight  (Read 1510 times)

0 Members and 1 Guest are viewing this topic.

Offline chris.bailey

  • Administrator
  • Galactic Poster
  • *****
  • Posts: 10012
  • If at last you do succeed, don't try again
    • Rosemount Observatory
Drizzle comes to Pixinsight
« on: 09:22:38, 04 June, 2014 »
The latest addition to Pixinsight processing is Drizzle Integration. At present its a bit long winded to use but the results are very good.

My widefield imaging setup has an image scale of 2.54"/pxl which is only a little undersampled but does tend to lead to blocky stars, most particularly in Ha. On widefield nebulae this is not so much of a problem but on dense star fields and clusters, is more of an issue.

Below is the same Ha data with a traditional stack and a drizzle stack which hopefully shows the benefit. Note that drizzling relies on dithered images and lots of them (at least 15 but preferably more than 20) and its does lead to much bigger image files needing some serious horsepower to process out. It also leads to more noise.

Chris
LX200|ZS70|FSQ85|FLT110|Altair DF250RC|EQ6 Pro(Rowan Belt Mod)|ParamountMX
ATIK383L+/EFW2/OAG|Lodestar|Baader 36mm LRGBHaSIIOIII
Starlight Express SXVRH16/ONAG/FW|Lodestar X2|Baader 2" Filters
Starlight Express SXVRH814/ONAG/FW|LodestarX2|Baader 2" Filters
Lunt LS60PTBF1200|DMK41|Quark Chromo
Samyang 135mm f1.8

 

ukbuysellRemote Imaging from AustraliaSharpSkyblank APTUKAI on Facebook
Powered by SMF 2.0.15 | SMF © 2006, Simple Machines LLC
DarkBreak by DzinerStudio. Theme modified by The UKAI Team

Page created in 0.144 seconds with 38 queries.
TinyPortal © 2005-2012