MunsellToRGB Converts a
Munsell specification to RGB coordinates, by interpolating over the
extrapolated Munsell renotation data
MunsellToRGB( MunsellSpec, space='sRGB', maxSignal=255, adapt='Bradford', ... )a numeric Nx3 matrix with HVC values in the rows, or a vector that can be converted to such a matrix, by row.
MunsellSpec can also be a character vector with Munsell Notations,
which is converted to an Nx3 matrix using HVCfromMunsellName().
the name of an installed RGB space.
Spaces 'sRGB' and 'AdobeRGB' are pre-installed,
and others can be installed with installRGB().
maximum of the non-linear signal RGB; Other popular values are 1, 1023, and 65535
method for chromatic adaptation, see CAT() for valid values.
Also see Details.
other parameters passed to MunsellToxyY()
a data.frame with these columns
an Nx3 matrix with xyY values in the rows, that are adapted to Illuminant C.
This is an intermediate result that is sometimes useful, e.g. it can be passed
to IsWithinMacAdamLimits().
an Nx3 matrix with non-linear RGB signal values in the rows. All values are clamped to the appropriate cube, e.g. \([0,255]^3\)
logical vector, TRUE means the result was out of gamut (the cube) before clamping it
The conversion is done in these steps.
HVC xyY using MunsellToxyY(). This xyY is for Illuminant C.
xyY is adapted from Illuminant C to the white-point of the RGB
space using adaptxyY() and the given chromatic adaptation method
xyY XYZ using XYZfromxyY()
XYZ RGB using RGBfromXYZ() with the given space
and maxSignal
Paul Centore 2014 The Munsell and Kubelka-Munk Toolbox http://centore.isletech.net/~centore/MunsellAndKubelkaMunkToolbox/MunsellAndKubelkaMunkToolbox.html
installRGB(),
MunsellToXYZ(),
RGBfromXYZ(),
XYZfromxyY(),
CAT(),
IsWithinMacAdamLimits()
# NOT RUN {
MunsellToRGB('7.6P 8.9/2.2')
# }
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