Quote:
Originally Posted by rcroman
Hi Marc,
StarShrink tries to detect stars by looking for sharp changes in brightness. It generally does a pretty good job, since stars are generally where the sharpest changes in brightness in an image are. But it can pick up on non-stellar objects as well, especially areas of high contrast, and especially at higher radius settings. Alas, there's no such thing as a perfect filter. The aim with this one was to enable a mostly-automatic method of tightening star profiles in a way that was previously quite labor-intensive and difficult to get consistent results.
Ken's tutorial shows some easy ways to control which parts of the image are affected.
Best,
Russ
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Hi Russel, thanks for the clarification. So the trigger for selection is any sharp boundary between bright and dark? Probably why it selected the dark ridge inside the flame. Will play with the settings again and be mindful to use a mask as not to affect any other part of the photo I'm working on.