Archived posting to the Leica Users Group, 2001/07/26
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What a crap!
Meino de Graaf
"Mxsmanic"
<mxsmanic@hotmail.com> To: <leica-users@mejac.palo-alto.ca.us>
Sent by: cc:
owner-leica-users@mejac.palo- Subject: Re: [Leica] Scanning
alto.ca.us
07/25/01 04:48 PM
Please respond to leica-users
Austin writes:
> You will see "something", but not lines.
"Something" is all you really ever see, no matter how good the scan.
Modulation
transfer is a continuum, not a binary value. The line is never completely
there
or completely not there, it is only visible to varying degrees.
> By your understanding, you could just use one
> pixel to sample the entire scene!
You need at least two pixels. However, given two pixels, you can sample
anything, depending on your threshold of acceptance for the degree of
contrast
detected. Of course, a scanner with only 2 DPI will scan 53 lp/mm with an
extremely low transfer value, probably too low to be useful.