Quantitative studies in retinex theory a comparison between theoretical predictions and observer responses to the “color mondrian” experiments

McCann, John J.; McKee, Suzanne P.; Taylor, Thomas H.

doi:10.1016/0042-6989(76)90020-1

Cited by 320 publications

(139 citation statements)

References 28 publications

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“…McCann, McKee and Taylor (1976) demonstrated that subjects show a form of colour constancy with Mondrian displays, their results being expressed in terms of the integrated reflectances of matching Munsell chips. Subsequently, the use of colour CRT displays has allowed more easily interpreted measurements of colour constancy to be made.…”

Section: Vision Research Author Manuscriptmentioning

confidence: 99%

An operational approach to colour constancy

1992

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Colour constancy is traditionally defined as the invariance of perceived surface colours under changes in the spectral composition of the illuminant. Existing quantitative studies show that, by this definition, human subjects show poor colour constancy. A different and complementary aspect of colour constancy is considered which is concerned with the ability of a subject to attribute correctly changes in the colour appearance of a scene either to changes in reflecting properties of the surfaces that make up the scene, or to changes in the spectral composition of the illuminant. Data are presented showing that, if the changes in the appearance of a scene were sufficiently great, subjects were capable of making the required discriminations highly reliably, and without scrutiny.

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Section: Vision Research Author Manuscriptmentioning

confidence: 99%

An operational approach to colour constancy

1992

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“…Another example is a colour-saturating source comprising three narrow-band red, green, and blue emitters [47,48], for instance a lamp known from experiments on visual perception, which contains 10-nm wide components with the spectral peaks at 630, 530, and 450 nm, respectively [48]. This RGB lamp has CSI in the range of 70% to 80% depending on CCT and huge gamut-area indices.…”

Section: Colour-saturating Lampsmentioning

confidence: 99%

Colour-rendition properties of solid-state lamps

Žukauskas¹,

Vaicekauskas²,

Shur³

2010

J. Phys. D: Appl. Phys.

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The applicability of colour quality metrics to solid-state light sources is validated and the results of the assessment of colour rendition characteristics of various lamps are presented. The standard colour rendering index metric (CRI) or a refined colour quality scale metric (CQS) fail to distinguish between two principle colour rendition properties of illumination: the ability to render object colours with high fidelity and the ability to increase chromatic contrast, especially when the spectra of light sources contain a few narrow-band electroluminescence components.Supplementing these metrics by the known figures of merit that measure the gamut area of a small number of test colour samples does not completely resolve this issue. In contrast, the statistical approach, which is based on sorting a very large number of test colour samples with respect of just perceivable colour distortions of several kinds, offers a comprehensive assessment of colour rendition properties of solid-state light sources. In particular, two statistical indices, colour fidelity index (CFI) and colour saturation index (CSI), which are the relative numbers of object colours rendered with high fidelity and increased saturation, respectively, are sufficient to reveal and assess three distinct types of solid state light sources. These are (i) high-fidelity lamps, which cover the entire spectrum with the spectral components present in the wavelength ranges of both 530-610 nm and beyond 610 nm (e.g. trichromatic warm white phosphor converted LEDs, red-amber-green-blue LED clusters, complementary clusters of white and coloured LEDs); (ii) colour-saturating lamps, which lack power in the 530-610 nm wavelength range (e.g. red-green-blue or red-cyan-blue LED clusters); and (iii) colour dulling lamps, which lack power for wavelengths longer than 610 nm (dichromatic daylight phosphor converted LEDs and amber-green-blue LED clusters). Owing to a single statistical format, CSI and CFI can be used for design and optimization of multiwavelength LED clusters providing "smart" illumination with a trade-off between different colour rendition characteristics.

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“…In his experiment of brightness matches, under no conditions were observers able to overcome the cue of relative contrast in order to make a correct luminance match. Also, several studies have shown that, generally, humans can perceive the surface reflectance of an object despite changes in illumination (e.g., Arend & Goldstein, 1987;Arend & Reeves, 1986;Blackwell & Buchsbaum, 1988;Brainard & Wandell, 1992;Land, 1959;McCann, McKee, & Taylor, 1976).…”

Section: Lightness and Brightnessmentioning

confidence: 99%

The maintenance of apparent luminance of an object.

Shimozaki¹,

Eckstein²,

Thomas³

1999

Journal of Experimental Psychology: Human Perception and Perfor

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Results from luminance discriminations with objects defined by apparent motion suggest an object-specific temporal integration of luminance. Further experiments suggested that this integration is weighted to favor the initial display of an object and involves the percept of surface reflectance (lightness). These results are consistent with the object-file metaphor suggested by D. Kahneman, A. Treisman, and B. Gibbs (1992), in which an object's perceived initial surface reflectance is assigned and maintained in an object file. A strategy is proposed in which the intrinsic properties of an object are assumed not to change over time. As intrinsic properties are generally invariant and possibly difficult to compute, this strategy would have the advantage of relatively high accuracy at relatively low computational cost.

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Quantitative studies in retinex theory a comparison between theoretical predictions and observer responses to the “color mondrian” experiments

Cited by 320 publications

References 28 publications

An operational approach to colour constancy

An operational approach to colour constancy

Colour-rendition properties of solid-state lamps

The maintenance of apparent luminance of an object.

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