colorSpec: xyz1931 – R documentation

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

xyz1931

CIE Color Matching Functions - 2-degree (1931)

Description

`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

Format

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

`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

Examples

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

colorSpec

Color Calculations with Emphasis on Spectral Data

v1.2-1

GPL (>= 3)

Authors

Glenn Davis [aut, cre]

Initial release

2020-04-01