# Color Science Methods and Data

## Documentation for package ‘colorscience’ version 1.0.9

- DESCRIPTION file.
- Code demos. Use demo() to run them.
- Package NEWS.

## Help Pages

A B C D E F G H I K L M N P R S T V W X Y Z

## -- A --

ASTM.D1925.YellownessIndex | ASTM D 1925 Yellowness Index for Plastics
ASTM.E313.Whiteness | ASTM E313 Whiteness
ASTM.E313.YellownessIndex | ASTM E313 Yellowness

## -- B --

Berger59.Whiteness | Berger (59) Whiteness
BVR2XYZ | convert from BVR coordinates to XYZ temperature (Robertson)

## -- C --

cccie31 | CIE (1931) 2-deg chromaticity coordinates
cccie64 | CIE (1964) 10-deg chromaticity coordinates
CCT2XYZ | Convert CCT to XYZ
CentralsISCCNBS | Central notations for the revised ISCC-NBS
CheckColorLookup | Check that the color block number is correct
ChromaticAdaptation | Chromatic adaptation algorithms
chromaticity.diagram | Plot the chromaticity diagram
chromaticity.diagram.color | Plot the chromaticity diagram line with color
chromaticity.diagram.color.fill | Plot the chromaticity diagram line with color
CIE.Whiteness | CIE Whiteness
CIE1931xy2CIE1960uv | Convert CIE 1931 xy color space to CIE 1960 uv color space
CIE1931xy2CIE1976uv | Convert CIE 1931 xy color space to CIE 1976 uv color space
CIE1931XYZ2CIE1931xyz | Convert CIE 1931 XYZ color space to CIE 1931 xyz color space
CIE1931XYZ2CIE1960uv | Convert CIE 1931 XYZ color space to CIE 1960 uv color space
CIE1931XYZ2CIE1976uv | Convert CIE 1931 XYZ color space to CIE 1976 uv color space
CIE1960UCS2CIE1964 | Convert CIE 1960 UCS color space to CIE 1964 color space
CIE1960UCS2xy | Convert CIE 1960 UCS color space to 1960 xy color space
CIE1976chroma | CIE 1976 chroma formula for CIELab and CIELuv
CIE1976hueangle | CIE 1976 hue angle formula for CIELab and CIELuv
CIE1976uv2CIE1931xy | CIE-1976 u'v' to CIE-1931 xy
CIE1976uv2CIE1960uv | CIE-1976 u'v' to CIE-1960 uv
CIE1976uvSaturation | CIE 1976 uv Saturation
CIELabtoDIN99 | Conversion from CIELAB color space to DIN99 coordinates
CIEluminanceY2NCSblackness | approximated NCS blackness s by the CIE luminance factor Y
CIETint | Tint indices: CIE Tint and ASTM E313 Tint
ciexyz31 | CIE 1931 2-deg, XYZ CMFs
ciexyz64 | CIE 1964 10-deg, XYZ CMFs
CMY2CMYK | Convert CMY coordinates to CMYK
CMY2RGB | Convert CMYK coordinates to RGB
CMYK2CMY | Convert CMYK coordinates to CMY
ColorBlockFromMunsell | Get HVC, ISCC-NBS Number and ISCC-NBS Name from Munsell notation
compuphaseDifferenceRGB | compuphase Difference RGB
conversionIlluminance | Conversion Factors for Units of Illuminance
conversionLuminance | Conversion Factors for Units of Luminance
createIsoTempLinesTable | table of isotemperature lines for use with the Robertson Method

## -- D --

daylightcomponents | daylight components
deltaE1976 | Delta E (CIE 1976)
deltaE1994 | Delta E (CIE 1994)
deltaE2000 | Delta E (CIE 2000)
deltaECMC | Delta E CMC
DeMarcoPokornySmith2degConeFundamentals1992 | DeMarco, Pokorny & Smith (1992) versions of the Smith-Pokorny 2-deg fundamentals
DIN6167.YellownessIndex | CIE Whiteness
DIN99toCIELab | Conversion from DIN99 coordinates to CIELAB color space
dkl2dklCart | converts between spherical and cartesian coordinates for DKL
dkl2rgb | convert RGB to DKL
dklCart2dkl | converts between spherical and cartesian coordinates for DKL
dklCart2rgb | convert RGB to DKL
DominantWavelength | Converts xyY coordinates to wavelength

## -- E --

emittanceblackbodyPlanck | emittance of a black body of temperature T at a given wavelength

## -- F --

footcandle2candela.steradian.sqmeter | converts foot candle to candela steradian / square meter
footcandle2lux | convert foot candle to Lumens/lux
footcandle2watt.sqcentimeter | converts foot candle to watts / square centimeter

## -- G --

GanzGrieser.Tint | Ganz and Grieser Tint
GanzGrieser.Whiteness | Ganz and Grieser Whiteness

## -- H --

heuristic.wlnm2RGB | Approximations from wavelengths to RGB
HSL2RGB | Convert HSL coordinates to RGB
HSV2RGB | Convert HSV coordinates to RGB
Hue.2.RGB | Convert Hue to RGB
huedegree | convert Munsell hue to degree
huedegreemunsell | Table with Munsell hue degrees
Hunter60.WhitenessIndex | Hunter 60 Whiteness Index
HunterLab2XYZ | Convert HunterLab coordinates to XYZ

## -- I --

illuminantA | Relative spectral power distributions of CIE illuminant A at 1 nm interval
illuminantD65 | Relative spectral power distributions of CIE illuminant D65 at 1 nm interval
illuminants | Relative spectral power distributions of CIE illuminants at 5 nm interval
ISObrightnessReflectometerRSD | Weighting factors for the calculation of ISO brightness

## -- K --

kelvin2xy | Blackbody radiator color temperature to CIE 1931 x,y chromaticity approximation function

## -- L --

Lab2LCHab | Convert CIE Lab coordinates to LCHab
LAB2LUV | Convert CIE Lab coordinates to CIE Luv
Lab2XYZ | Convert CIE Lab coordinates to XYZ
LCHab2Lab | Convert LCHab coordinates to CIE Lab
LCHuv2Luv | Convert LCHuv coordinates to CIE Luv
LEF2RGB | Convert LEF coordinates to RGB
LMS2DKL | Convert LMS coordinates to DKL
LMS2RGB | Convert LMS coordinates to RGB
LMS2XYZ | Convert LMS coordinates to XYZ
LSLM2RGB | Convert LSLM coordinates to RGB
LUV2LAB | Convert CIE Luv coordinates to CIE Lab
Luv2LCHuv | Convert CIE Luv coordinates to LCHuv
Luv2XYZ | Convert CIE Luv coordinates to XYZ
Luv2Yuv | Convert CIE Luv coordinates to Yuv

## -- M --

makeChromaticAdaptationMatrix | Generate a Chromatic Adaptation matrix
MaterialReferenceData | Material Reference Data from Principles of Digital Image Synthesis
MaxChromaFromExtrapRenotationData | Table with maximum chroma for which extrapolated renotation data is available
MaxChromasForStandardMunsellHuesAndValues | Table with maximum Munsell chroma, for a given Munsell hue and value, for which an extrapolated renotation value is available
Maxwell.triangle | Plot the Maxwell triangle
Maxwell.triangle.color | Plot the Maxwell triangle
Maxwell.triangle.color.fill | Plot the Maxwell triangle
Munsell100hues55 | Chromaticity diagram showing values for x and y for Illuminant A for 100 hues at 5/5
Munsell100hues55FM100 | Munsell 100-Hues at 5/5, production numbers 101 to 200 and Farnsworth-Munsell 100 Hue test
MunsellHues | Table with Munsell Hues
MunsellNeutrals2sRGB | Table with Munsell Neutrals and corresponding sRGB
MunsellSpecToHVC | convert Munsell notation to numeric HVC
MunsellSpectral | Table with Munsell spectral data
MunsellV2relativeLuminanceY | Munsell value V to relative luminance Y
MunsellV2Y | Munsell value to CIE XYZ "Y"

## -- N --

NickersonColorDifference | Nickerson Color Difference

## -- P --

PhotoYCC2RGB | Convert PhotoYCC to RGB
PreucilAngle | Preucil Angle
PreucilPercentGreyness | Preucil Percentage of Greyness
PreucilPercentHueError | Preucil Percentage of Greyness

## -- R --

RGB2CMY | Convert sRGB coordinates to CMY
rgb2dklCart | convert RGB to DKL
rgb2dklV | convert RGB to DKL
RGB2HSL | Convert RGB coordinates to HSL
RGB2HSV | Convert RGB coordinates to HSV
RGB2hue | Convert sRGB coordinates to hue
RGB2LEF | Convert RGB coordinates to LEF
RGB2LMS | Convert RGB coordinates to LMS
RGB2LSLM | Convert RGB coordinates to LSLM
RGB2PhotoYCC | Convert RGB coordinates to PhotoYCC
RGB2XYZ | Convert sRGB coordinates to XYZ
RGB2YCbCr | Convert RGB coordinates to YCbCr
RGB2YIQ | Convert RGB coordinates to YIQ
RGB2YPbPr | Convert RGB coordinates to YPbPr
RGB2YUV | Convert RGB coordinates to YUV
RxRyRz2XYZ | convert from three filter measurements (reflectance factors) to XYZ

## -- S --

saturationCIECAM02 | saturation CIECAM 2002
saturationCIELAB | CIELUV/CIELAB saturation
saturationCIELABEvaLubbe | CIELAB saturation (Eva Lubbe)
saturationCIELUV | CIELUV/CIELAB saturation
SmithPokorny2degConeFundamentals1975 | Smith & Pokorny (1975) 2-deg cone fundamentals
spectra2CCT | Correlated Color Temperature (CCT) from spectra
spectra2CRIGAIFSCI | CRI, GAI and FSCI from spectra
spectra2ISObrightness | Diffuse blue reflectance factor (ISO brightness)
spectra2lux | Illuminance (Lux) from spectra
spectra2XYZ | convert spectral data to tristimulus values
sprague | Interpolates an n by w matrix of spectra, sprague
StearnsStearnscorrection | Stearns and Stearns correction
Stensby68.Whiteness | Stensby Whiteness
StockmanMacLeodJohnson10degConeFundamentals1993 | Stockman & Sharpe (2000) 10-deg cone fundamentals
StockmanMacLeodJohnson2degCIEadjConeFundamentals1993 | Stockman, MacLeod & Johnson (1993) 2-deg cone fundamentals
StockmanMacLeodJohnson2degStilesBurchConeFundamentals1993 | Stockman, MacLeod & Johnson (1993) 2-deg fundamentals
StockmanSharpe10degCMFS2000 | Stockman & Sharpe (2000) 10-deg cone fundamentals
StockmanSharpe2degCMFadj2000 | Stockman & Sharpe (2000) 2-deg cone fundamentals
SystemISCCNBS | ISCC-NBS System

## -- T --

Taube60.Whiteness | Taube Whiteness
TCSdata | The spectral reflectance data of 14 color test samples for CRI
tristimulusMunsell | 434 Munsell colors with tristimulus and CMFs for a few illuminants

## -- V --

VosEstevezWalraven2degConeFundamentals1990 | Vos, Estévez & Walraven (1990) 2-deg cone fundamentals
VosWalraven2degConeFundamentals1971 | Vos & Walraven(1971) 2-deg cone fundamentals

## -- W --

WestlandBlacknessIndex | Westland, et al. blackness index
whitepointsilluminants | White points of standard illuminants
whitepointsRGB | Primaries for RGB color spaces
wlnm2XYZ | Approximates wavelength to CIE tristimulus XYZ
wlnm2xyz | Approximates wavelength to CIE tristimulus XYZ

## -- X --

xFit_1931 | Approximations from wavelengths to XYZ by Wyman et al
xy2CCT.HernandezAndres | convert from chromaticity coordinates to correlated color temperature (Hernandez Andres)
xy2CCT.McCamy | convert from chromaticity coordinates to correlated color temperature
xyChromaticitiesVos1978 | x, y coordinates transformed to Judd (1951) x', y' system
xyY2XYZ | Convert CIE CMF to XYZ
XYZ2BVR | convert from XYZ coordinates to BVR
XYZ2CCT.Robertson | convert from chromaticity coordinates to correlated color temperature (Robertson)
XYZ2HunterLab | convert from XYZ coordinates to Hunter Lab coordinates
XYZ2Lab | convert from XYZ coordinates to CIE Lab coordinates
XYZ2LMS | Convert XYZ coordinates to LMS
XYZ2Luv | convert from XYZ coordinates to CIE Luv coordinates
XYZ2RGB | convert from XYZ coordinates to CIE RGB coordinates
XYZ2RxRyRz | convert from XYZ to three filter measurements (reflectance factors)
XYZ2xyY | convert from XYZ coordinates to xyY coordinates
XYZ2Yuv | convert from XYZ coordinates to Yuv coordinates
XYZMoonSpencer1945 | Approximations from wavelengths to XYZ by Moon & Spencer
XYZperfectreflectingdiffuser | Perfect reflecting diffuser data
XYZTannenbaum1974 | Approximations from wavelengths to XYZ by Tannenbaum 1974
XYZtoRGB | convert from XYZ coordinates to RGB

## -- Y --

Y2MunsellV | CIE XYZ "Y" to Munsell value
Y2MunsellVtable1D1535 | CIE XYZ "Y" to Munsell value formula, based on the ASTM Standard D1535-08
YCbCr2RGB | Convert YCbCr coordinates to RGB
yFit_1931 | Approximations from wavelengths to XYZ by Wyman et al
YIQ2RGB | Convert YIQ coordinates to RGB
YPbPr2RGB | Convert YCbCr coordinates to RGB
Yuv2Luv | Convert Yuv coordinates to Luv
YUV2RGB | Convert YUV coordinates to RGB
Yuv2xy | convert from Yuv coordinates to xy coordinates
Yuv2XYZ | convert from Yuv coordinates to XYZ coordinates
Yxy2CIE1960UCS | convert from Yxy coordinates to CIE 1960 UCS
Yxy2Yuv | convert from Yxy coordinates to Yuv coordinates

## -- Z --

zFit_1931 | Approximations from wavelengths to XYZ by Wyman et al