Quote:
Originally Posted by Shiraz
Thanks Rick - looked it up following your first post - much appreciated  . I can understand weighting applied when adding noisy frames to a stack, but am still trying to understand what it means for resolution - do you understand it to mean that, if you only add a fraction of a dud frame, you can still get some SNR advantage from it without messing up the detail too much? I don't think that there is any resolution advantage in adding less well resolved data - seems to me that can only work to degrade resolution, even if weighted.
regards ray |
Ray,
I'd reject poor FWHM subs (or set weight to zero) for the high res integration. I didn't mean to imply that there would be some benefit from including these except in the high SNR integration.
Cheers,
Rick.