Message-Id: <199702040855.CAA27374@library.wustl.edu> Date: Tue, 4 Feb 1997 09:49:04 +0100 From: Levine Emil <mailto:levine@NEPO1.IAEA.OR.AT> Subject: Resolution Standards and Procedures for To: mailto:IMAGELIB@LISTSERV.ARIZONA.EDU
Colleagues,Here at the UN/IAEA/INIS in Vienna we will begin to scan (1,500,000 pages a year) documents previously put on microfiche. Using microfiche, of course, we film a resolution chart (NBS SRM 1010-A) and measure the resolution using a microscope.
At the AIIM meeting last year I asked many time what is the equivelant test for scanning, and never got an answer. I plan to scan the IEEE Std 167A-1987 and determine the smallest point size I can read, and .resolution chart (NBS SRM 1010-A), this does not really give a true reading of resolution, as this becomes a factor of the display system and laser printout. We will scan at 240 DPI and use the images for CD-ROM and also to make raster scan com microfiche.
Does anyone have a procedure for determining the resolution achieved in scanning and on raster scan COM. Any new standards covering this?
Emil Levine Head, INIS Clearinghouse mailto:LEVINE@NEPO1.IAEA.OR.AT