xyz1964: CIE Color Matching Functions - 10-degree (1964)

Description Format Source References See Also Examples

Description

xyz1964.1nm the 10° 1964 functions from 360 to 830 nm, at 1nm intervals
xyz1964.5nm the 10° 1964 functions from 380 to 780 nm, at 5nm intervals

Format

Each is a colorSpec object organized as a matrix with 3 columns.

x the x-bar responsivity function
y the y-bar responsivity function
z the z-bar responsivity function

Source

http://www.cvrl.org

References

Günther Wyszecki and W.S. Stiles. Color Science : Concepts and Methods, Quantitative Data and Formulae. Second Edition. Wiley-Interscience. 1982. Table I(3.3.1). pp. 723-735.

ASTM E 308 - 01. Standard Practice for Computing the Colors of Objects by Using the CIE System. Table 1

See Also

xyz1931

Examples

1
2
summary(xyz1964.1nm)
white.point = product( D65.1nm, xyz1964.1nm, wave='auto' )

Example output

This is colorSpec.  Version: 0.5-3.  Author: Glenn Davis [aut, cre].  Built: R 3.4.1; ; 2017-09-21 19:34:23 UTC; unix

colorSpec object.   The organization is 'matrix'.  Object size is 17968 bytes.
the object describes a responder to light with 3 output channels, and the quantity is 'power->neural'.
Wavelength range: 360 to 830 nm.  Step size is 1 nm.

3 spectra
471 data points / spectrum

  Channel        Min    Max LambdaMax E.response
1       x 1.2220e-07 1.1343     595.5   116.6485
2       y 1.3398e-08 1.0000     557.0   116.6619
3       z 0.0000e+00 2.0273     445.0   116.6740
--------------- metadata: start ------------------

path  =  ../inst/extdata/eyes/ciexyz64_1.csv

header  = 
#   ciexyz64_1.csv
#   
#   the 1964 color matching functions at 1nm intervals from 360 to 830 nm
#
#   the data is from
#   Wyszecki & Stiles
#   Color Science, 2nd edition.
#   Table I(3.3.2)  pp. 738-747.
#
#   It was downloaded from http://www.cvrl.org/

--------------- metadata: end ------------------

colorSpec documentation built on April 2, 2018, 5:05 p.m.