Re: filmscanners: What causes this and is there any easy solution ?

["Steve Greenbank" <steve@gccl.fsbusiness.co.uk>]

I'll try this and see how it compares with gaussian blur. I was hoping
someone would have a solution that didn't involve carefully selecting
sections of a 20Mpixel image. It takes ages to get it right and I wish I had
a bigger monitor there just isn't enough room for the picture on my 17 inch
screen.Sadly there isn't enough room in the house for a significantly bigger
screen.

Maybe, with practice I will be able to select sections better. Has anyone
tried adjusting their mouse movement settings (slow it down,reduce
accelleration) to make this easier ?

Steve

----- Original Message -----
From: "Lynn Allen" <lalle@email.com>
To: <filmscanners@halftone.co.uk>
Sent: Saturday, May 12, 2001 1:00 AM
Subject: RE: filmscanners: What causes this and is there any easy solution ?


> The solution looks so easy that I probably don't understand the problem
> completely. :-) There are two quick ways you can do corrections:
> 1) make two scans the same size in Vuescan; one normally, the second with
a
> slight positive offset of manual focus (about +1 to +1.5). The second scan
> will have "corrected" much if not all of the g-a, and the subject will be
a
> little blurred--but surprisingly little (you might even decide to stay
with
> that one, unless you're doing large blow-ups).
> 2) load the first scan into Photoshop or your favorite image processor.
> Select "All" and copy it. Then load the second frame in (it's OK to delete
> the first one without saving, since you have a copy). Paste the copy over
> the second, blurry copy, and Erase the sky from the top layer down to the
> blurred layer.
>
> If you can get a Selector to work, like the Magic Wand for example to
select
> just the sky portions (I almost never can--I think the wand is
over-rated),
> it's even  simpler--select the sky only, and have-at-it with any or all of
> the blur filters. :-)
>
> Another way is to use Channels (if they're available in your programs)
> either to select and copy a mask, or--as I'd say in this case--to isolate
> the redish pixels in the sky and eliminate them.
>