COLORIMETRY
COLORIMETRY
UNDERSTANDING THE
CIE SYSTEM
Edited by
JA´ NOS SCHANDA
University of Pannonia, Hungary
WILEY-INTERSCIENCE
A JOHN WILEY & SONS, INC., PUBLICATION
Copyright ß 2007 by John Wiley & Sons, Inc. All rights reserved
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Wiley Bicentennial Logo: Richard J. Pacifico
Library of Congress Cataloging-in-Publication Data:
Colorimetry : understanding the CIE system / edited by Ja´nos Schanda.
p. cm.
ISBN 978-0-470-04904-4 (cloth)
1. Colorimetry. I. Schanda, Ja´nos.
QD113.C65 2007
5430.55–dc22
Printed in the United States of America
10 9 8 7 6 5 4 3 2 1
2007026256
CONTENTS
Preface
Contributors and Referees
Part I Historic retrospection
1 Translation of CIE 1931 Resolutions on Colorimetry
Translated by P. Bodrogi
Decision 1
Decision 2
Appendix to Decision 2
Decision 3
Decision 3a
Decision 4
Decision 5
2 Professor Wright’s Paper from the Golden Jubilee Book:
The Historical and Experimental Background to the 1931
CIE System of Colorimetry
W. D. Wright
Color mixture and measurement in the Nineteenth Century
American contributions to photometry and colorimetry, 1900–24
The run-up to the 1931 observer: 1924–30
The drama of 1931
Postscript to 1931
Note added in proof
References
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CONTENTS
Part II Colorimetric fundamentals
3 CIE Colorimetry
Ja´nos Schanda
Introduction
CIE standard colorimetric observers
The CIE 1931 standard colorimetric observer
Determination of the rðlÞ; gðlÞ; bðlÞ color-matching functions
Derivation of the CIE XYZ trichromatic system from the
CIE RGB trichromatic system
Tristimulus values and chromaticity coordinates
CIE 1964 standard colorimetric observer
k10 in the tristimulus values of self-luminous objects for
the 10 observer
k10 in the tristimulus values of non-self-luminous objects for
the 10 observer
Chromaticity coordinates for the 10 observer
Notes on the use of the CIE 1964 standard colorimetric observer
CIE illuminants and sources
CIE standard illuminant A and Planckian radiators
Daylight illuminants
CIE standard illuminant D65
CIE illuminants
CIE sources and simulators for colorimetry
Source A
Sources B and C
Source D65
Standards and recommendations for measuring
reflecting/transmitting materials
Terms used in conjunction with transmission
and reflection measurement
Phenomena
Quantities to describe reflection and transmission
Measuring geometries
The sample plane and influx geometry
Directional geometries
Quantities using different measuring geometries
Nonstandard geometries
Recommended geometry for transmission measurements
Standards of reflectance
Uniform chromaticity diagram and uniform color spaces
Uniform chromaticity diagram, CIE 1976 UCS diagram
CIE 1976 uniform color spaces
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CONTENTS
CIE 1976 (Lab) color space, CIELAB color space
CIE 1976 (Luv) color space, CIELUV color space
Descriptors of chromaticity
Dominant/complementary wavelength and purity
Correlated color temperature
Whiteness
Metamerism
Special metamerism index: change in illuminant
Special metamerism index: change in observer
Summary
Appendix A
Appendix B
References
4 CIE Color Difference Metrics
Klaus Witt
Introduction
MacAdam’s experiments on variable stimuli
Adams’ and Nickerson’s contribution to color
difference evaluation
Constant stimuli experiments
CIE 1976 color difference formulas
Testing and improving CIELAB
Collection of new datasets
Development of CIEDE2000
Further developments
References
5 Spectral Color Measurement
Yoshi Ohno
Introduction
General practice in spectral color measurements
Type of instruments
Use of spectroradiometers for light
source color measurement
Irradiance mode
Radiance mode
Total flux mode
Colorimetric calculation
Use of spectrophotometers for object color measurements
Geometries for reflectance color measurement
Color calculation
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