ISSN:0361-2317    

DOI:10.1002/col.5080150502

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

年代:1990

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080150503

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

年代:1990

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080150504

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

年代:1990

数据来源: WILEY

摘要:

AbstractA survey has been made of the use and methods of Instrumental colour difference measurement in quality control of colour within Europe. Several colour differnce formulae are in use. The performances of the most used formulae, namely CIELAB, CMC, BFD, M&S, and Datacolor, are compared. The degree of implementation of colour difference measurement in the textile, leather, automobile, and coatings industries is summarised. The use of new computer graphics to ensure continuity of colour from batch to batch and the alternative methods of colour sorting to minimise colour differences between batches are described.

ISSN:0361-2317    

DOI:10.1002/col.5080150505

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

年代:1990

数据来源: WILEY

摘要:

AbstractIn the ten years since the last Inter‐Society Color Council conference on color discrimination considerable progress in industrial color‐difference evaluation has been made. The results of a questionnaire indicated that the efforts of the CIE to make formula usage more uniform has been successful. Efforts to improve the correlation between average visual judgment and calculated color difference have also resulted in progress. Nevertheless, a considerable amount of work remains to be done regarding the mechanisms affecting color‐difference evaluation before instrumental color‐difference evaluation can become a highly reliable tool of manufa

ISSN:0361-2317    

DOI:10.1002/col.5080150506

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

年代:1990

数据来源: WILEY

摘要:

AbstractWe describe the design philosophy and image representation of a calibrated color image processing system. The design emphasizes the representation of the spectral functions necessary for device‐independent acquisition and display of color data. These basic design principles can be incorporated into a new generation of image processing software that integrates both spatial and spectral image processin

ISSN:0361-2317    

DOI:10.1002/col.5080150507

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

年代:1990

数据来源: WILEY

摘要:

AbstractThe color‐appearance models developed by R. W. G. Hunt (model H) and Y. Nayatoni and his collaborators (model N) are compared. The following color perceptions are analyzed: (1) colorfulness under illuminant C for NCS samples, (2) colorfulness change by changing illuminant C to illuminant A, (3) colorfulness change by changing adaptign illuminance, (4) Helson‐Judd effect on achromatic colors under saturated chromatic illuminants, and (5) brightness and lightness. Special features of each model are made clear. In addition, a deatailed discussion is given on the mechanism introbucing the Helson‐Judd effect and on the model formulations, especially in mo

ISSN:0361-2317    

DOI:10.1002/col.5080150508

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

年代:1990

数据来源: WILEY

摘要:

AbstractRushtion and Baker have shown that the ratio of R to G cones varies between observers. We use this variability to ask if observers, say, who are rich in R‐cone input to the flicker (VΛ) channel, are also likely to be rich in R‐cone input to the long‐wavelength half of the y‐b channel. For the 8 observers tested, there is no correlation between cone inputs to +

ISSN:0361-2317    

DOI:10.1002/col.5080150509

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

年代:1990

数据来源: WILEY

摘要:

AbstractPrevious studies have shown a distinction between short‐term and long‐term visual memory by measuring serial position curves for achromatic visual patterns. Three experiments are reported in which serial position curves were measured for homogeneous colored light patches displayed on a color monitor. In experiment 1 three color patches were displayed in series followed by reverse serial order recognition testing. Experiment 2 used the same paradigm but with different colors and with four items in the presentation series. The results of both experiments showed a recency effect confined to the last item, but no evidence of any primacy effect. These results correspond to those observed with achromatic patterns, suggesting that similar memory processes are used for color and pattern information. In experiment 3, the presentation series of four colors was followed by a single a recognition probe for one of these colors, chosen randomly. Under these conditions, the pronounced recency effect disappeared. The results are consistent with the view that both color memory and achromatic pattern memory utilise a voluntary visualization strategy. This has important implications for theories of visual memory, and practical issues concerning color matching by visual inspect

ISSN:0361-2317    

DOI:10.1002/col.5080150510

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

年代:1990

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080150511

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

年代:1990

数据来源: WILEY