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A comment on Accurate Image Alignment and Registration Using OpenCV. Parent comment

Re:Accurate Image Alignment and Registration Using OpenCV by nullc on Wednesday March 09, 2022 @09:30AM (#30614732)
'When undersampled' -- time to get a more modern sensor?

3.76um pixels + 800mm focal length is about 1 arcsecond per pixel, so that will end up seeing limited much of the time.

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Re:Accurate Image Alignment and Registration Using OpenCV by gliptic on Wednesday March 09, 2022 @09:44AM (#30614908)
Many undersample on purpose and get better results that way. You can workaround seeing a little with lucky imaging and patience, being very selective.

Also, drizzling was developed originally for the Hubble Deep Field, which isn't limited by seeing :).

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