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Simple Technique to Improve Microfiche Prints of Fish Scales
Author(s) -
Tsumura Kanji
Publication year - 1987
Publication title -
north american journal of fisheries management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 72
eISSN - 1548-8675
pISSN - 0275-5947
DOI - 10.1577/1548-8659(1987)7<441:sttimp>2.0.co;2
Subject(s) - rainbow trout , microform , fish <actinopterygii> , computer graphics (images) , salmo , scale (ratio) , reading (process) , computer science , contrast (vision) , impression , simple (philosophy) , art , fishery , visual arts , computer vision , geography , world wide web , biology , cartography , linguistics , philosophy , epistemology
When scales of rainbow trout or steelhead Salmo gairdneri are impressed on vinyl slides, and the impressions are magnified on a microfiche reader‐printer, and the magnified images are printed out, the prints are not always clear because of irregularities in the depth of the scale impression. Application of a thin film of black ink to the vinyl slides results in clear, high‐contrast prints that enhance scale reading and interpretation.