Simple method to generate combined luminance and chromaticity differences at threshold levels
作者:
Juan Gorraiz,
Helmuth Horvath,
Thomas Habenreich,
期刊:
Review of Scientific Instruments
(AIP Available online 1987)
卷期:
Volume 58,
issue 1
页码: 134-136
ISSN:0034-6748
年代: 1987
DOI:10.1063/1.1139542
出版商: AIP
数据来源: AIP
摘要:
We developed a rapid and simple measuring system for contrast thresholds for a human observer, based on simultaneously presenting eight negative, different contrasts against a uniform background on a screen. This experimental method allows: (1) a continuous variation of the presented contrasts and (2) generation of very small chromaticity differences parallel to the luminance differences.
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