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Interlaboratory comparison of contrast measurement

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada
  2. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
Subjectlighting; Lighting
Abstract
Although there are several alternative forms of contrast the computation of the contrast of printed materials always involves a ratio of luminances at a luminous border. In this report contrast is defined simply as the ratio of the luminance of the darker zone to that of the lighter zone, except where noted. By this definition, contrasts range from unity for very faint luminous border to approximately zero for such prominent borders as black ink on white paper.
Publication date
In
  • Journal of the Illuminating Engineering Society 17, no. 2 (1988): 61–69.
LanguageEnglish
Peer reviewedYes
IdentifierIRC-P-1844
NRC numberNRCC 34061
NRC-IRC-2458
NPARC number20374680
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Record identifier84ef0a4d-80ac-45bb-8e35-19f29920e1f7
Record created2012-07-23
Record modified2020-06-06
Date modified: