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I agree that blurring is likely the best way
to deal with very grainy images. I've
gotten some good results with SGBNR (better than with NI).
The only problem that I've encountered is the narrow banding that
occurs around bright stars due to the mask. I've been able to control this
somewhat by adjusting the mask but I can't eliminate it completely without
significantly reducing the amount of blurring. There seems to be a
definite trade-off between distinct stars and reduced grain.
OT: A bit of information I obtained from
the product manager of VisInf, if you are a member of the
National Association of Photoshop Professionals, you will be able to obtain
Grain Surgery at a 20% discount. In their review of the software,
Photoshop User magazine mistakenly listed the price at 159.00. VisInf
decided to honor this. There will be an announcement in their web site as
well as the next newsletter.
But now it looks like there will be further
revisions in SGBNR - and it's still free?!
Tom
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