ISSN:0361-2317    

DOI:10.1002/col.5080060202

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

年代:1981

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080060203

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

年代:1981

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080060204

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

年代:1981

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080060205

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

年代:1981

数据来源: WILEY

摘要:

AbstractThis article describes a nonrecording spectrophotometer designed for use as a tool in the restoration and conservation of paintings. A small patch of monochromatic light of any desired wavelength is projected onto the precise area of the painting to be measured and the light reflected from the painting is compared with that reflected from a calibrated working standard. The measuring head of the instrument and a specially designed easel are both provided with alignment controls to bring the monochromatic patch onto the required point of the painting. The instrument itself is mounted on a trolley so that it can be wheeled into position facing the easel. The uses to which the instrument will be put include the measurement of colour changes due to the cleaning, revarmshing, and relining of a painting, and environmental conditions; the identification of the pigments used by the artist; spectral reflectance measurements to assist the conservator with in‐painting a damaged or “lost” area; and tests on new artists' materials including the effect of drying and

ISSN:0361-2317    

DOI:10.1002/col.5080060206

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

年代:1981

数据来源: WILEY

摘要:

AbstractA simple, yet reliable, method is described for deducing the appropriate term to describe a hue difference between two specimens whose CIELAB hue angles are known. It is based on the rotation of the chroma axis through the position of the specimen regarded as standard and the association of the four unitary hues with the four a* b* axes, two of which must be specified to eliminate ambiguities.

ISSN:0361-2317    

DOI:10.1002/col.5080060207

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

年代:1981

数据来源: WILEY

摘要:

AbstractThe importance of the slit function is discussed in connection with the calculation of tristimulus values by the weighted‐ordinate method. The influence of slit‐function shape on wavelength calibration is shown. The influence of slit‐function range on photometric accuracy is discussed. It is shown how slit‐function range affects the choice of optimum radiance‐factor measurement interval and v

ISSN:0361-2317    

DOI:10.1002/col.5080060208

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

年代:1981

数据来源: WILEY

摘要:

AbstractIn the early part of the 18th century, J. C. Le Blon set forth the primary nature of red, yellow, and blue, and created full‐color prints that anticipated modern methods of “process” color reproduction by nearly two cent

ISSN:0361-2317    

DOI:10.1002/col.5080060209

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

年代:1981

数据来源: WILEY

摘要:

AbstractA Color Image Scale was devised by the use of an original color‐projection technique, analysis of variance, cluster analysis, factor analysis, and the semantic differential method. On this scale every color has three attributes: warm or cool, soft or hard, and clear or grayish, which correlate with the notation hue, value, and chroma. The Color Image Scale is useful for describing the similar and contrasting images of colors. The scale also allows the classification and correlation of various objects (shapes, patterns, clothing, foods, etc.) and the study of personal preferences in these and other area

ISSN:0361-2317    

DOI:10.1002/col.5080060210

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

年代:1981

数据来源: WILEY

ISSN:0361-2317    

DOI:10.1002/col.5080060211

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

年代:1981

数据来源: WILEY