Calculates coordinates and colorimetric variables that represent reflectance spectra in a dichromatic colour space.
Arguments
- vismodeldata
(required) quantum catch color data. Can be either the result from
vismodel()
or independently calculated data (in the form of a data frame with two columns named 's' and 'l', representing a dichromatic viewer's receptors).
Value
A data frame of class colspace
consisting of the following columns:
s
,l
: the quantum catch data used to calculate the remaining variables.x
: the coordinate of the stimulus along a segmentr.vec
: the r vector (saturation, distance from the center).
References
Kelber A, Vorobyev M, Osorio D. (2003). Animal colour vision - behavioural tests and physiological concepts. Biological Reviews, 78, 81 - 118.
Author
Thomas White thomas.white026@gmail.com