Colour Adaptation in Picture-Viewing Situations

Hunt, R. W. G.; Winter, Lars

doi:10.1080/00223638.1975.11737826

Cited by 39 publications

(19 citation statements)

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“…When a soft-copy image contained its own context as with a familiar scene, neutral was judged with respect to the apparent illumination depicted in the CRT regardless of the surroundings. These results are supported by experiments performed by others such as Fairchild (Fairchild, 1990), Hunt and Winter (Hunt and Winter, 1975), Bartleson (Bartleson, 1968, 1979 and Hurvich and Jameson (Hurvich and Jameson, 1951-a,b). These effects have also be included in color appearance models such as that proposed by Hunt (Hunt, 1987).…”

Section: Discussionsupporting

confidence: 89%

<title>Effects of ambient illumination and image color balance on the perception of neutral in hybrid image display systems</title>

Gorzynski

Berns

1990

SPIE Proceedings

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This paper describes a visual experiment in which a group of observers made forced choice judgments of the location of neutral in test images presented on a color CRT display and photographic reflection prints. The . CRT and photographic images were presented both separately and side-by-side in a simulated office environment under two conditions of ambient illumination, tungsten and daylight fluorescent. The results indicate that an observer's state of chromatic adaptation during image viewing is mainly dependent on image areas with little or no dependence upon the surrounding environment. With reflection images viewed in normal conditions, observers were noted to automatically discount ambient illumination.When viewing self-luminous images however, observers formed relative judgements only under certain conditions. These results are discussed in terms of their use in choosing white points for color reproduction calculations.

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Section: Discussionsupporting

confidence: 89%

<title>Effects of ambient illumination and image color balance on the perception of neutral in hybrid image display systems</title>

Gorzynski

Berns

1990

SPIE Proceedings

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“…[1][2][3][4][5][6][7][8][9] In the achromatic adjustment procedure, an observer adjusts a test stimulus until it appears black, gray, or white. Typically, the observer is allowed to vary the chromaticity of the stimulus while its luminance is held constant.…”

Section: Introductionmentioning

confidence: 99%

Predicting color from gray: the relationship between achromatic adjustment and asymmetric matching

Speigle

Brainard

1999

J. Opt. Soc. Am. A

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Achromatic adjustment has been used widely to study color context effects. In the achromatic adjustment procedure, an observer adjusts a test stimulus until it appears black, gray, or white. By its nature, achromatic adjustment directly measures the effect of context only for stimuli that appear gray. We present achromatic loci measured in two contexts and asymmetric color matches measured across the same two contexts. The results indicate that achromatic adjustments, together with a gain-control model, may be used to make accurate predictions of the chromaticity of asymmetric matches. Thus measurements of the effect of context for test stimuli that appear gray may be used to predict the effect of context for stimuli that appear colored. The experiments also indicate that accurate prediction depends on ensuring that observers use similar fixational strategies for the two judgments.

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“…where LMS w i , ͑i =1,2͒ are the LMS cone responses 30 to the reference white w i of Display i and H is a nonsingular matrix which transforms XYZ to LMS. In the NLXWP model, we assume the reference white XYZ w i , ͑i =1,2͒ of the two displays share the same chromaticity coordinates.…”

Section: Analytical Transformations Using Device Modelsmentioning

confidence: 99%

Color Management Using Optimal Three-Dimensional Look-Up Tables

Srivastava¹,

Delp²,

Ha³

et al. 2010

jist

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Digital imaging has seen an unprecedented growth in the past five years. The variety of imaging systems available to users to create and view visual data is enormous. Color management has become an important aspect of modern imaging and display systems. Color profiles have been the de facto tool for achieving faithful visual reproduction for a long time. In this article, the authors discuss issues associated with profile-based color management systems. The authors describe an alternative approach motivated by the problem of visually matching two known display devices. The authors use a model-based method to achieve this goal and propose realizing the method with simple table look-up operations. The authors devise a framework for designing look-up tables (LUTs) which are optimal in terms of color reproduction on the displays based on resource constraints. The LUT-based color management system is shown to be more accurate and memory-efficient than a comparable International Color Consortium profile-based system.

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Colour Adaptation in Picture-Viewing Situations

Cited by 39 publications

References 0 publications

<title>Effects of ambient illumination and image color balance on the perception of neutral in hybrid image display systems</title>

<title>Effects of ambient illumination and image color balance on the perception of neutral in hybrid image display systems</title>

Predicting color from gray: the relationship between achromatic adjustment and asymmetric matching

Color Management Using Optimal Three-Dimensional Look-Up Tables

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