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Journal of the Society of Motion Picture Engineers ( Volume: 31, Issue: 2, August 1938)
[ACTIVE]

A Color Densitometer for Subtractive Processes

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
In subtractive color processes it is desirable to have some type of sensitometry to tell how the process departs from correct rendering of neutral gray scales. Reading the density of a color deposit through an arbitrary filler does not give rise to a useful value in terms of the final color process. For practical use the “effective density” of a color is defined as the visual density produced by adding sufficient of the other colors of the process to produce gray. An instrument is described that reads such values directly. This instrument is capable also of analyzing the amounts of each of two or more colors when present simultaneously and permits the analysis of a sensitometric exposure into the corresponding deposits of each color. Complete sensitometric curves may he drawn for all the records from the readings of a single strip.
Publication Date
1938-08-01
DOI
10.5594/J12948
Link
https://doi.org/10.5594/J12948
Author(s)
R. M. Evans
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R. M. Evans; A Color Densitometer for Subtractive Processes, Journal of the Society of Motion Picture Engineers ( Volume: 31, Issue: 2, August 1938); SMPTE, 1938. Available at https://doi.org/10.5594/J12948
Snippet:
R. M. Evans; A Color Densitometer for Subtractive Processes, Journal of the Society of Motion Picture Engineers ( Volume: 31, Issue: 2, August 1938); SMPTE, 1938. Available at https://doi.org/10.5594/J12948

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R. M. Evans; A Color Densitometer for Subtractive Processes, Journal of the Society of Motion Picture Engineers ( Volume: 31, Issue: 2, August 1938); SMPTE, 1938. Available at https://doi.org/10.5594/J12948
Snippet:
<span class="citation">R. M. Evans; <cite>A Color Densitometer for Subtractive Processes</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 31, Issue: 2, August 1938); SMPTE, 1938. Available at <a href="https://doi.org/10.5594/J12948" target="_blank" rel="noopener">https://doi.org/10.5594/J12948</a></span>

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Preview:
R. M. Evans; A Color Densitometer for Subtractive Processes, Journal of the Society of Motion Picture Engineers ( Volume: 31, Issue: 2, August 1938); SMPTE, 1938
doi: 10.5594/J12948
url: https://doi.org/10.5594/J12948
Snippet:
<li>
R. M. Evans; <cite id="bib-10-5594-j12948">A Color Densitometer for Subtractive Processes</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 31, Issue: 2, August 1938); SMPTE, 1938
<span class="doi">10.5594/J12948</span>
</li>