Microcopying Methods
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Microcopying Methods
Author: H. R. Verry
language: en
Publisher: London ; New York : Focal P.
Release Date: 1967
Microcopying Wildland Maps for Distribution and Scanner Digitizing
Images in graphic or printed form can be reduced in size by microcopying. Microform is a collective term for stored microimages. Conventional microform tilms include silver halide, nonsilver diazo, vesicular, and color. Criteria for selecting the proper format include map quadrangle size and reduction ratio. Among several competing types of microforms, only microform and microfiche were judged acceptable for application to wildland maps. Microimages can be digitized by automatic techniques. With careful planning, it is possible to digitize automatically forest map microimages for input to computerized mapping systems. Other benefits of microcopying include a reduction in the cost of handling and shipping the original documents, savings in space, and making archival copies more lasting.