&lt;title&gt;Effect of ambient light sourcea on the appearance of color image on CRT monitor&lt;/title&gt;

Kim, Yong-Gi; Kim, Jeong Yeop; Chung, Eui-Yoon; Ha, Yeong-Ho

doi:10.1117/12.410809

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…The work presented in this article evaluates the performance of the above CIE colour appearance models for the common mixed illumination conditions where users tend to view images on self‐luminous displays in rooms with sufficient ambient light for comfortable viewing. In this context, previous studies using achromatic colour matching experiments7, 8 indicated shifts of 10–20% caused by the ambient illumination. To test the hue reproduction of colour appearance models, it is necessary to assess the appearance of a coloured patch under different adaptation conditions.…”

Section: Introductionmentioning

confidence: 88%

Unique hue data for colour appearance models. Part II: Chromatic adaptation transform

Xiao

Mylonas

et al. 2011

Color Research & Application

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Unique hue settings of 185 observers under three room-lighting conditions were used to evaluate the accuracy of full and mixed chromatic adaptation transform models of CIECAM02 in terms of unique hue reproduction. Perceptual hue shifts in CIECAM02 were evaluated for both models with no clear difference using the current Commission Internationale de l'E´clairage (CIE) recommendation for mixed chromatic adaptation ratio. Using our large dataset of unique hue data as a benchmark, an optimised parameter is proposed for chromatic adaptation under mixed illumination conditions that produces more accurate results in unique hue reproduction.

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Section: Introductionmentioning

confidence: 88%

Unique hue data for colour appearance models. Part II: Chromatic adaptation transform

Xiao

Mylonas

et al. 2011

Color Research & Application

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“…10 These works have been written in relation to white point of color appearance models. However, the phenomenon of the black point shifted from achromatic axis, has not been comprehensively evaluated 11 -13 .…”

Section: Introductionmentioning

confidence: 99%

<title>Appearance match between hardcopy and softcopy using lightness rescaling with black point adaptation</title>

Nakabayashi

Fairchild

2001

SPIE Proceedings

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When we view a softcopy image on a CRT display, typical CRT white point color temperature is 9300K and standard ambient light is 5000K. In this case, the black on the CRT screen is lightened and the chromaticity of the black is far from the achromatic axis because of the reflection of ambient light on the CRT displays. Also, when viewing hardcopy in the same environment as a CRT monitor, the chromaticity of the printer black is far from the achromatic axis. If such a printer were the source device and CRT monitor the destination device, dark printer colors cannot be reproduced on the destination device because, for dark colors, the gamut of the destination is smaller than the gamut of the source. Thus, lightness compensation is needed to reproduce dark colors on destination device. Three methods were considered:(1) Simple lightness compression method, (2) Complete black point adaptation method that consists of mapping to the CRT black, (3) Incomplete black point adaptation method that is a compromise between method (1) and (2). Visual experiments were performed to investigate these methods. The results indicated that the appropriate black point adaptation ratio is located between softcopy and hardcopy black points.

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<title>Effect of ambient light sourcea on the appearance of color image on CRT monitor</title>

Cited by 2 publications

References 9 publications

Unique hue data for colour appearance models. Part II: Chromatic adaptation transform

Unique hue data for colour appearance models. Part II: Chromatic adaptation transform

<title>Appearance match between hardcopy and softcopy using lightness rescaling with black point adaptation</title>

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