----- Original Message -----
From: "Jostein"
Subject: Re: Noise reduction
I've been wondering about the same, Bill. Haven't really pursued the
matter, but I suspect that there must be some software designed for
astrophoto that can do it.
I was wondering (I will have to try it at some point) if a person took a
dark field exposure and inverted it in Photoshop, one would then have a
white field with dark spots.
If that could then be overlayed onto the noisy image, it should reduce the
hot pixels quite nicely, since they tend to be in the same place all the
time anyway.
Just a random thought.
William Robb
