Archived posting to the Leica Users Group, 2003/07/16

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Subject: RE: [Leica] Scanning slides
From: "darkroom@ix.netcom.com" <darkroom@ix.netcom.com>
Date: Wed, 16 Jul 2003 21:00:05 -0400

Hi Clive,

> The resolution you need to scan at is whatever it takes to get 150 to 300
> dpi at the printed size.

The best you can do is scan at the optical resolution of the scanner. 
Scanning at anything other than that degrades the image because you are
asking the scanning software to interpolate or decimate the data.

What you then do is resize the image in PS, and what you do there depends
on your desired output.  If you are outputting to an Epson, simply resize
the image to what you want, and DO NOT RESAMPLE (uncheck the box) and let
the PPI to the printer fall where it may.

This avoids resampling the image twice, once by the scanner, and then again
by the printer driver.  My suggested method only resamples the data once,
by the printer driver (which resamples to 720 prior to running the
dithering algorithm for the desktop Epsons).

Regards,

Austin


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Replies: Reply from "Michael Chmilar" <chmilar@mminternet.com> (RE: [Leica] Scanning slides)