Quote:
Originally Posted by Stefan Buda
Richard,
That is an incomplete sentence. It should continue like this: ..at the expense of resolution, and resolution, once lost, it cannot be regained.
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Apologies, you are correct in that it is an incomplete sentence - it shouldn't have been there at all as it was a fragment left over from a previous draft of the post.
That said, my understanding of drizzle is that its purpose is to recover information that is lost due to undersampling (as described
here). In my example (b) from my previous post, the image scale of a 2x2 binned image with a ST10 on my VC200L is 2.2 arcsecs per pixel (ie clearly undersampled). If a 2x drizzle when applied to my example (b) does not "recover information that is lost due to undersampling" then what is it doing? is not the "recovered lost information" referring to recovered resolution. I thought that was the point of drizzle.
(this is a genuine question btw)