OPTIMIZATION OF THE GRAY SCALE FOR PHOTOSCANNERS - CONCISE COMMUNICATION

  • 1 January 1979
    • journal article
    • research article
    • Vol. 20  (1) , 57-59
Abstract
A gray scale providing easy visual interpretation of black-and-white photoscan transparencies was determined empirically from psychophysical and visual studies conducted on 50 observers. This optimum gray scale provides equal visualization for equal count-rate changes over the entire film range.

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