Re: Scanning with USM or not?
Re: Scanning with USM or not?
- Subject: Re: Scanning with USM or not?
- From: email@hidden (Lee Blevins)
- Date: Sat, 2 Jun 2001 06:52:04 -0400
- Organization: Digital Graphics, Inc.
My apologies to all.
In my haste I was thinking UCR even though I was reading USM.
My comments are totally wrong. RGB scanners do manage USM.
From my own experience I'll offer this.
Scanners with 4 PMT's, RGB and one dedicated to USM (optical unsharp
masking) seem to offer a better quality USM.
Scanners that produce "electronic" USM don't (to my eye) appear as good.
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In a message dated 6/1/01 7:37:15 AM, email@hidden writes:
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>Some high end CMYK Drum scanners offer RGB scanning but it's really just
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>a conversion to RGB after the CMYK image is made.
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>Our DS scanner does this.
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>Since USM is only applicable in CMYK, this is a tipoff that you're
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>scanning cmyk and having it converted to rgb
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Not necessarily. In particular, Scanmate scanners using ColorQuartet
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definitely scan and can apply apply USM in hi-bit RGB.
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Harold Burns
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