Message-Id: <199710062358.QAA65028@dns.ccit.arizona.edu> Date: Mon, 6 Oct 1997 16:47:29 -0700 From: Mike Levy <mailto:MLEVY@SFPL.LIB.CA.US> Subject: Digitization standards To: mailto:IMAGELIB@LISTSERV.ARIZONA.EDU
Dear Image Libs,Has there been a standard established to define what the d.p.i. for a "preservation quality" b&w photographic image should be if digitized in 256 grays? I'm specifically asking about an uncompressed archival version of the scanned file. I've read suggestions which range from 300 to 600 d.p.i. and I'm interested in what others are doing, specifically, those that do their scanning in-house.
Thanks,
Mike Levy Multimedia Department San Francisco Public Library (415)557-4416