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Britt:  Thanks for the help, I will check out the science-art page too!

Sincerely Carolyn Withrow
----- Original Message -----
From: "Britt Griswold" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, September 29, 2004 7:59 AM
Subject: Re: Unsharp Mask


> >Hello:
> >
> >I am a little confused on how to use the eyedropper tool in the
> >levels box to help in tonal adjustments in a black and white line
> >drawing.  I had read a suggestion in an earlier list message to use
> >the white dropper to selct white areas.  I am practicing with a
> >black and white line drawing.    Also can you run an unsharp mask
> >filter twice, is it ever useful and how do you do it?
> >
> >Sincerely, Carolyn Withrow
> >
>
> Select the white eye dropper icon in the dialog, then click on the
> darkest part of the image that you want to be white. You can do the
> same adjustments in the Curves dialog (and more).
>
> Sometimes running the un-sharp filter twice with different settings
> can be useful. I am not sure how useful on a B&W drawing. You can see
> a quick view of the idea on this page:
>
> http://www.science-art.com/support/UnsharpMaskB.jpg
>
> --
> _______________________________________
> Britt Griswold/WMAP Project
> Infonetic/Maslow Media Group
> NASA's Goddard Space Flight Center
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> Greenbelt, MD 20771-0001
> (301) 286-3381
> (301) 286-1617 FAX
> (301) 286-7230 FAX
> [log in to unmask]
> http://map.gsfc.nasa.gov
>
>