摘要:

AbstractA model of color vision is given to predict color appearance of object colors under various illuminants and illuminance levels. The model constitutes a uniform color‐appearance space under any adapting condition, and can predict the metric quantities relating to the following color perceptions: (1) constant‐hue loci, (2) the Munsell color scheme, (3) the increase of brightness contrast of nonselective samples with increasing adapting‐illuminance level, (4) the Helson‐Judd effect, and (5) the increase of colorfulness of chromatic samples with increasing adapting‐illumina

ISSN:0361-2317    

DOI:10.1002/col.5080110112

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractIndividual differences in luminous efficiency were determined for color‐normal observers at photopic and mesopic light levels by flicker photometry. The standard deviations of the settings made by 52 observers at photopic levels did not exceed 0.1 log unit. Variability was greatest at the extremes of the spectrum, and it did not increase appreciably at mesopic levels. Heterochromatic matches made by one observer using flicker photometry would probably be acceptable to most other observers. The variability has heretofore been assumed to be greater than it apparently is because of conventions used in reporting the dat

ISSN:0361-2317    

DOI:10.1002/col.5080110113

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080110114

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080110115

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

摘要:

AbstractThe CIE has recently recommended for field trial a method for predicting corresponding colors with a change in chromatic adaptation. To aid the CIE in collecting results illustrating the accuracy of these predictions, a FORTRAN program currently used by the Munsell Color Science Laboratory is listed along with test data. This chromatic‐adaptation transform can be used to calculate CIELAB or CIELUV metrics for non‐daylight illuminants, indices of illuminant metamerism, and indices of color constancy. Including this transform in these calculations, it is hoped, will result in metrics with better correlation to visual assessments. It is hoped that readers will implement this method, compare the effectivness of this chromatic‐adaptation transform to visual evaluations, and report their results to CIE Technical Committee

ISSN:0361-2317    

DOI:10.1002/col.5080110116

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080110117

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080110118

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080110119

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080110120

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080110121

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1986

数据来源: WILEY