Recognized visual space of illumination: No simultaneous color contrast effect on light source colors

Cunthasaksiri, Prasit; Shinoda, Hiroyuki; Ikeda, Mitsuo

doi:10.1002/col.20207

Cited by 4 publications

(3 citation statements)

References 24 publications

(29 reference statements)

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“…Originally, Katz15 was the first to classify the colors of objects in terms of “modes of color appearance.” He described and compared 11 modes of appearance. However, in this study, we classified the color appearance mode into three obvious modes based on the recognized visual space of illumination theory 16–21. First, a color can be perceived as a property of a surface when its luminance level is quite low.…”

Section: Introductionsupporting

confidence: 93%

“…However, in this study, we classified the color appearance mode into three obvious modes based on the recognized visual space of illumination theory. [16][17][18][19][20][21] First, a color can be perceived as a property of a surface when its luminance level is quite low. Second, it is perceived as a property of light source or light itself (i.e., self-radiating) when its luminance level is adequately high.…”

Section: Introductionmentioning

confidence: 99%

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Color preference affected by mode of color appearance

Tangkijviwat¹,

Rattanakasamsuk²,

Shinoda³

2009

Color Research & Application

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Most color preference research focuses on colors in an object color mode. In our daily life, however, colors are perceived not only as an object color mode but also as other modes, such as unnatural object color and light source color modes. To explore the effect of the color appearance mode on color preference, we examined the relationship between color preference and the mode of color appearance. Thirty-three color chips were chosen from the Munsell notation varying in hues and chromas. The color chips were presented in different color appearance modes by changing the subject's room illuminance and the color chip room illuminance. The experimental results showed that the brightest and most saturated colors were preferred. It was found that the subject preferred color in a light source color mode and unnatural object color mode to color in an object color mode. Moreover, we found that hue had a small effect on color preference in the light source color mode. We also investigated the relationship between color preference and the perceived color attributes (perceived chromaticness, whiteness, and blackness). In a supplementary experiment, elementary color naming was conducted. The results showed that the perceived chromaticness, perceived whiteness, and perceived blackness play a role for the determination of color preference for different color appearance modes. We, consequently, suggest that color preference is dominated not only by color attributes but also by the mode of color appearance.

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Section: Introductionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Color preference affected by mode of color appearance

Tangkijviwat¹,

Rattanakasamsuk²,

Shinoda³

2009

Color Research & Application

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“…In psychophysical studies, Ikeda and his colleagues investigated the effect of surrounding surface colors on the color appearance of a high-luminance test patch in the illuminantcolor mode [21][22][23]. They measured the color appearance of a test patch in a natural scene with variable illuminations, and the results showed that color constancy gradually failed for the high-luminance test patch when the luminance became too high for it to appear as a natural object color [22].…”

Section: Past Studies Testing the Influence Of Color Appearance Onmentioning

confidence: 99%

Color constancy in a scene with bright colors that do not have a fully natural surface appearance

Fukuda

Uchikawa

2014

J. Opt. Soc. Am. A

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Theoretical and experimental approaches have proposed that color constancy involves a correction related to some average of stimulation over the scene, and some of the studies showed that the average gives greater weight to surrounding bright colors. However, in a natural scene, high-luminance elements do not necessarily carry information about the scene illuminant when the luminance is too high for it to appear as a natural object color. The question is how a surrounding color's appearance mode influences its contribution to the degree of color constancy. Here the stimuli were simple geometric patterns, and the luminance of surrounding colors was tested over the range beyond the luminosity threshold. Observers performed perceptual achromatic setting on the test patch in order to measure the degree of color constancy and evaluated the surrounding bright colors' appearance mode. Broadly, our results support the assumption that the visual system counts only the colors in the object-color appearance for color constancy. However, detailed analysis indicated that surrounding colors without a fully natural object-color appearance had some sort of influence on color constancy. Consideration of this contribution of unnatural object color might be important for precise modeling of human color constancy.

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Partial Exclusion of the Local Effect from the Assessment of Recognized Illuminant Using Depth Separation

Rattanakasamsuk

Shinoda

2006

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Recognized visual space of illumination: No simultaneous color contrast effect on light source colors

Abstract: Previous study [Cunthasaksiri et al., Color Res Appl 2004;29:255-260] showed that simultaneous color contrast (SCC)

Cited by 4 publications

References 24 publications

Color preference affected by mode of color appearance

Color preference affected by mode of color appearance

Color constancy in a scene with bright colors that do not have a fully natural surface appearance

Partial Exclusion of the Local Effect from the Assessment of Recognized Illuminant Using Depth Separation

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