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The Journal of Nuclear Medicine Vol. 20 No. 1 57-59
© 1979 by Society of Nuclear Medicine
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Optimization of the Gray Scale for Photoscanners: Concise Communication

Wei Chang*, and Monte Blau

State University of New York at Buffalo, Buffalo, New York

Correspondence: For reprints contact: Wei Chang, Dept. of Nuclear Medicine, Loyola University Medical Ctr., 2160 S. First Ave., Maywood, Illinois.

ABSTRACT

A gray scale providing easy visual interpretation of black-and-white photoscan transparencies was determined empirically from psychophysical studies conducted on 50 observers. This optimum gray scale provides equal visualization for equal count-rate changes over the entire film range.

FOOTNOTES

* Present address: Department of Nuclear Medicine, Loyola University Medical Center, 2160 S. First Avenue, Maywood, Illinois.






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Copyright © 1979 by the Society of Nuclear Medicine.