Quote:
Originally Posted by gb44
The frame looks like a circular gradient tool.
Bit odd though - its off centre, and there's a broad blue brush stroke to the right mid centre.
GlennB
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It's the auto background extraction in Pixinsight Glenn - I can't offer any insight into what it does, just downloaded the trial version and tried a couple of features.
The manual and auto background extraction seem to help some images significantly and do little on others.