文章基本信息

标题：DO DICHROMATS SEE COLOURS IN THIS WAY? ASSESSING SIMULATION TOOLS WITHOUT COLORIMETRIC MEASUREMENTS
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作者：Julio Antonio Lillo Jover ; Leticia Álvaro Llorente ; Humberto Moreira Villegas 等
期刊名称：Psicothema
印刷版ISSN：0214-9915
电子版ISSN：1886-144X
出版年度：2016
卷号：28
期号：4
页码：435-441
DOI：10.7334/psicothema2016.201
出版社：Cologio Oficial de Psicólogos del Principado
摘要：Background: Simulcheck evaluates Colour Simulation Tools (CSTs, they transform colours to mimic those seen by colour vision deficients). Two CSTs (Variantor and Coblis) were used to know if the standard Simulcheck version (direct measurement based, DMB) can be substituted by another (RGB values based) not requiring sophisticated measurement instruments. Method: Ten normal trichromats performed the two psychophysical tasks included in the Simulcheck method. The Pseudoachromatic Stimuli Identification task provided the h uv (hue angle) values of the pseudoachromatic stimuli: colours seen as red or green by normal trichromats but as grey by colour deficient people. The Minimum Achromatic Contrast task was used to compute the L R (relative luminance) values of the pseudoachromatic stimuli. Results and conclusions: Simulcheck DMB version showed that Variantor was accurate to simulate protanopia but neither Variantor nor Coblis were accurate to simulate deuteranopia. Simulcheck RGB version provided accurate h uv values, so this variable can be adequately estimated when lacking a colorimeter —an expensive and unusual apparatus—. Contrary, the inaccuracy of the L R estimations provided by Simulcheck RGB version makes it advisable to compute this variable from the measurements performed with a photometer, a cheap and easy to find apparatus.
关键词：Color vision; Simulation tools evaluation; Dichromacy; Colorimetry; Adobe RGB 1998; Psychophysics.