Effect of primary peak wavelength on color matching and color matching function performance

Luminosity as a color-matching function

Color Research & Application ◽

10.1002/col.5080080211 ◽

1983 ◽

Vol 8 (2) ◽

pp. 121-121

Author(s):

David L. Macadam

Keyword(s):

Matching Function ◽

Color Matching

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Examination of the Color Matching Function with Narrow-band LED System

Journal of Vision ◽

10.1167/16.4.39 ◽

2016 ◽

Vol 16 (4) ◽

pp. 39

Author(s):

Kunihiro Hatakeyama ◽

Tsubasa Kamei ◽

Yuki Kawashima ◽

Takehiro Nagai ◽

Yasuki Yamauchi

Keyword(s):

Narrow Band ◽

Matching Function ◽

Color Matching

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Creating RGB Images from Hyperspectral Images Using a Color Matching Function

IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium ◽

10.1109/igarss39084.2020.9323397 ◽

2020 ◽

Author(s):

Magnus Magnusson ◽

Jakob Sigurdsson ◽

Sveinn Eirikur Armansson ◽

Magnus O. Ulfarsson ◽

Hilda Deborah ◽

...

Keyword(s):

Hyperspectral Images ◽

Matching Function ◽

Color Matching ◽

Rgb Images

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THE IMPACT OF MATCHING PRIMARY PEAK WAVELENGTH ON COLOR MATCHING ACCURACY AND OBSERVER VARIABILITY

Color and Imaging Conference ◽

10.2352/issn.2169-2629.2019.27.39 ◽

2019 ◽

Vol 2019 (1) ◽

pp. 220-224

Author(s):

Li J. ◽

Hanselaer P. ◽

Smet K.A.G.

Keyword(s):

Solid State ◽

Observer Variability ◽

Color Matching ◽

Peak Wavelength ◽

Matching Accuracy ◽

Definitive Answer ◽

Standard Observer ◽

Matching Performance ◽

The Impact ◽

Over Time

Over time, much work has been carried out to ascertain the accuracy of the CIE standard color-matching functions, but no definitive answer has been given. Recent work indicates an undeniable discrepancy between visual and computed metamers calculated using the existing CIE (the International Commission on Illumination) standard observer CMFs, especially when matching with narrowband sources. With a spectrally tunable solid-state light source, a series of pilot matching experiments have been done using primaries with different peak wavelengths. The results indicate which regions in wavelength space are most sensitive to generating matching inaccuracies for a given CMF set and which primary combinations have the most stable matching performance.

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Change of color appearance due to extremely high light level: corresponding colors under 100 and 3000 cd/m2

Color and Imaging Conference ◽

10.2352/issn.2169-2629.2019.27.58 ◽

2019 ◽

Vol 2019 (1) ◽

pp. 320-325 ◽

Cited By ~ 1

Author(s):

Wenyu Bao ◽

Minchen Wei

Keyword(s):

Light Level ◽

Limited Range ◽

High Light ◽

Color Preference ◽

Color Appearance ◽

Appearance Model ◽

Color Matching ◽

Light Levels ◽

Appearance Models ◽

Psychophysical Study

Great efforts have been made to develop color appearance models to predict color appearance of stimuli under various viewing conditions. CIECAM02, the most widely used color appearance model, and many other color appearance models were all developed based on corresponding color datasets, including LUTCHI data. Though the effect of adapting light level on color appearance, which is known as "Hunt Effect", is well known, most of the corresponding color datasets were collected within a limited range of light levels (i.e., below 700 cd/m2), which was much lower than that under daylight. A recent study investigating color preference of an artwork under various light levels from 20 to 15000 lx suggested that the existing color appearance models may not accurately characterize the color appearance of stimuli under extremely high light levels, based on the assumption that the same preference judgements were due to the same color appearance. This article reports a psychophysical study, which was designed to directly collect corresponding colors under two light levels— 100 and 3000 cd/m2 (i.e., ≈ 314 and 9420 lx). Human observers completed haploscopic color matching for four color stimuli (i.e., red, green, blue, and yellow) under the two light levels at 2700 or 6500 K. Though the Hunt Effect was supported by the results, CIECAM02 was found to have large errors under the extremely high light levels, especially when the CCT was low.

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