colorSpec (version 0.5-2)

xyz1931: CIE Color Matching Functions - 2-degree (1931)

Description

ll{ xyz1931.1nm the 1931 2° functions from 360 to 830 nm, at 1nm intervals xyz1931.5nm the 1931 2° functions from 380 to 780 nm, at 5nm intervals }

encoding

UTF-8

format

Each is a colorSpec object organized as a matrix with 3 variables. ll{ {x} the x-bar responsivity function} y

tab

• the y-bar responsivity function
• the z-bar responsivity function

cr

• z

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

xyz1964

Examples

summary(xyz1931.1nm)
white.point = product( D65.1nm, xyz1931.1nm, wave='auto' )