| LUV {colorspace} | R Documentation |
This function creates colors of class “LUV”; a subclass of the virtual “color” class.
LUV(L, U, V, names)
L,U,V |
these arguments give the L, U and V coordinates of
the colors. The values can be provided in separate |
names |
a vector of names for the colors (by default the
row names of |
The L, U and V values give the coordinates of
the colors in the CIE (1976) L*u*v* space.
This is a transformation of the 1931 CIE XYZ space which attempts to
produce perceptually based axes.
Luminance takes values between 0 and 100, and the other coordinates
take values between -100 and 100. The a and b coordinates
measure positions on green/red and blue/yellow axes.
An object of class “LUV” which inherits from class “color.”
Ross Ihaka
RGB,
HSV,
XYZ,
LAB,
polarLAB,
polarLUV.
## Show the LUV space x = RGB(runif(1000), runif(1000), runif(1000)) plot(as(x,"LUV"))