Archived posting to the Leica Users Group, 1998/12/17

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Subject: Re: [Leica] New Home Page
From: "James R. Nelon" <>
Date: Fri, 18 Dec 1998 01:01:37 +0800

Thanks for your help on sharpening. I'm working on the pics now. Will repost to
the web after I get the results I want. Thanks again.

Jim Nelon

Eric Welch wrote:

> >That is, is the sharpening done at scan time somewhere in the Nikon scanner
> >driver
> >or later in Photoshop? I don't know how to do it. Thanks for your help.
> In Photoshop use unsharp mask. Not sharpening. It sounds strange, but it's
> got what you need. It depends on how big your image file is on the amounts
> you use.
> "Amount" at about 100-300 - bigger files use a bigger number.
> "Radius" at 1.0 for normal pictures. Higher to increase impression of
> sharpness, but it falls apart really quickly. Grainy pictures, use 0.8.
> "Threshold" at 0 for fine-grained images, and increase it to minimize grain
> - to a reasonable amount. Too much will soften the image and work against
> the first two settings.
> You have to play with the amounts and see what works for you. Sometimes
> with high grain, a hit of despeckle before unsharp mask will help to
> minimize grain effects.
> --
> Eric Welch
> St. Joseph, MO
> You're only young once; you can be immature f'ever