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Dan -
Thanks for posting. I've only had about 6 hours total
with the program and I can already tell it is a winner! I'm looking
forward to getting more in depth with it.
Chris
SGBNR is like BGSmooth except you have total
control over EVERYTHING and it is full TIFF compliant. N.
I. and G.S. both leave artifacts, SGBNR does not. Do this; do the best
you can with either program to zap the noise/grain, then grossly over sharpen
the image and you will see these artifacts. Do the same with SGBNR and no
artifacts, just a grossly over sharpened image. I have been
beta testing this program for Juan Conejero for some time now and IMO it
is by far the best noise reduction application going. Controlling the Mask is
probable the most important element and it takes some practice to get it
right. SGBNR gives you total independent control over all three color channels
and total independent control over the shape and size of the convoluting
matrix and you get to see a preview of the changes you make; zoomed in up
to 4x if need be. The red channel may need a different mask or matrix
shape or matrix size from the blue channel, ect. The mask controls what's
zapped by the convoluting matrix and you control both. A simple unsharp
mask in PS pops the image back to the original sharpness or because of
the lack of noise, the image can be sharpened further. This application
deserves some serious scrutinizing and it's FREE.
Dan Norman
----- Original Message -----
Sent: Saturday, March 02, 2002 4:51
PM
Subject: Re: [APML] M42 and Neat image
- SGBNR
There is also a program called SGBNR short for Selective
Gaussian Blur Noise Reduction. Jim Janusz posted a thread a while back
about this program. I downloaded it last night and have been playing
around with it. My first impression is that it is not much better than
BGSmooth except the interface is quite user friendly.
Chris
Warren,
Without really understanding Neat Image (or BigSmooth for that
matter), I think Neat Image may offer greater selectivity in the
smoothing. It also has a smart sharp routine that seems to work
well. BGsmooth is very nice and I am grateful for its
availability. Perhaps someone who understands the software and
science behind the image manipulation can comment. Neat image does
show you a preview as you adjust the parameters. As Jason wrote,
Neat Image is very slow, even on web size. I will have to play
around with it when I get more time.
Jeff
Ball
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