ISSN:0361-2317    

DOI:10.1002/col.5080200502

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

年代:1995

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080200503

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

年代:1995

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080200505

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

年代:1995

数据来源: WILEY

摘要:

AbstractA colorimetrically characterized computer‐controlled CRT display was used to determine 24 loci of constant perceived hue for pseudo‐object related stimuli, sampling the display's interior color gamut at constant lightness and the edge of its gamut at variable lightness. Nine observers performed three replications generating matching data at 132 positions. the constant hue loci were used to evaluate the correlation between perceived hue and hue angle of CIELAB, CIELUV, Hunt, and Nayatani color appearance spaces. the CIELAB, CIELUV, and Hunt spaces exhibited large errors in the region of the blue CRT primary, while the Nayatani and CIELUV spaces produced large errors in the region of the red primary for constant lightness stimuli. Along the edge of the CRT's color gamut (variable lightness stimuli), all the spaces had a similar trend, large errors in the cyan region. the differences in performance between the four spaces were not statistically significant for the constant lightness stimuli. For the variable lightness stimuli, CIELAB and CIELUV had statistically superior performance in comparison with the Nayatani space and equal performance in comparison with the Hunt space. It was concluded that for imaging applications, a new color appearance space needs to be developed that will produce small hue error artifacts when used for gamut mapping along loci of constant hue angle. © 1995 John Wiley&Sons,

ISSN:0361-2317    

DOI:10.1002/col.5080200506

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

年代:1995

数据来源: WILEY

摘要:

AbstractAppearance images play a large part in directing and controlling human behavior. Such images are of different types, but all have their origins in the physics and design of the scene. the Total Appearance concept traces events leading to the formation of four image types. the approach is designed to embrace all scenes from the manufactured product, to interior design, to the performing and fine arts. This article represents an attempt to emphasize the continuity of science and art, helping practitioners of these traditionally disparate disciplines work together to achieve a greater understanding and control of the visual images we create and manage in our crowded world. Communication between designer and technologist can be based on a quantitative understanding of the basic perceptions of form, colour, translucency, gloss, and movement. Central to this is the understanding and use of colour. Rather than attempt an exhaustive treatment, an outline of the principles involved is given. In this way, the general application and breadth of the approach, as well as the integrated nature of the philosophy, can be better appreciated. Both scientist and nonscientist have much to contribute to the understanding ofTotal Appearance. © 1995 John Wiley&Sons. Inc

ISSN:0361-2317    

DOI:10.1002/col.5080200507

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

年代:1995

数据来源: WILEY

摘要:

AbstractThe philosophy of theTotal Appearanceconcept and its application to the measurement of scenes have been described in Part I of this article. The part played by the concept in the creation of images is now outlined with respect to six real scenes. Widely different types of scenes are described in terms of the images that might be engendered in the perceiver. The sources of these images are traced in terms of the properties of the scene and the characteristics of the perceiver. © 1995 John Wiley&Sons. Inc

ISSN:0361-2317    

DOI:10.1002/col.5080200508

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

年代:1995

数据来源: WILEY

摘要:

AbstractA new set of colour appearance data was obtained from a series of experiments in which 240 wool samples having a large size of 3 x 3 in. square that subtends 10° at the observer's eye, and covering a large colour gamut were used. Each colour was assessed by a panel of five observers using a magnitude estimation method under three light sources, D65, TL84, and A. In total, 10,770 estimations were made, and these form a set of new colour appearance data in textiles. Data analysis was carried out and shows that the accuracy of the visual results for different observers is quite good. the colour appearance data were used to test the performance of seven chromatic‐adaptation transformations, i.e., BFD, Bartleson, von Kries, CIE, Hunt, CIEL*a*b*, and Fairchild. the results show that the BFD transformation gives the most accurate prediction to the visual results between all transformations studied. All transformations can have a better fit to the experimental grid under TL84 than that under A. However, the results given by the best chromatic‐adaptation transformation are still unsatisfied in colour industries, especially in the textile industry. the two sets of experimental grids respectively derived from this work and by Luo et al. (1991) were also studied. an expected difference between the two sets of experimental grids was found. the difference may mainly result from two factors: the experimental method in assessment and the size of the samples. © 1995 John Wiley&Sons

ISSN:0361-2317    

DOI:10.1002/col.5080200509

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

年代:1995

数据来源: WILEY

摘要:

AbstractThis article provides Munsell (aim and actual), NCS (aim and actual), DIN (aim and actual), Coloroid (aim), Colorcurve (aim and actual), and OSA‐UCS (aim and actual) notations for the 237 colour samples that comprise BS5252. These notations were obtained from recent spectrophotometric measurement of the standard, using a new version of the colour notation conversion program initially developed at the University of Teesside. © 1995 John Wiley&Sons. I

ISSN:0361-2317    

DOI:10.1002/col.5080200510

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

年代:1995

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080200511

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

年代:1995

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080200512

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

年代:1995

数据来源: WILEY