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colorscience (version 1.0.0)

Color Science methods and data

Description

Methods and data for color science - color conversions by observer, illuminant and gamma. Color matching functions and chromaticity diagrams. Color indices, color differences and spectral data conversion/analysis.

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Version

Install

install.packages('colorscience')

Monthly Downloads

932

Version

1.0.0

License

GPL (>= 3)

Maintainer

Jos Gama

Last Published

July 18th, 2014

Functions in colorscience (1.0.0)

Convert HunterLab coordinates to XYZ

Convert LCHab coordinates to CIE Lab

Convert RGB coordinates to YUV

CIE1931XYZ2CIE1960uv

Convert CIE 1931 XYZ color space to CIE 1960 uv color space

convert RGB to DKL

CIE 1976 chroma formula for CIELab and CIELuv

Convert RGB coordinates to YIQ

Convert CIE Lab coordinates to LCHab

Table with Munsell Hues

ASTM.D1925.YellownessIndex

ASTM D 1925 Yellowness Index for Plastics

WestlandBlacknessIndex

Westland, et al. blackness index

convert from XYZ coordinates to BVR

Convert CMYK coordinates to RGB

Convert HSL coordinates to RGB

Berger59.Whiteness

Berger (59) Whiteness

Convert CCT to XYZ

GanzGrieser.Tint

Ganz and Grieser Tint

Convert CIE Luv coordinates to LCHuv

CIE1976uv2CIE1960uv

CIE-1976 u'v' to CIE-1960 uv

DIN6167.YellownessIndex

CIE1976hueangle

CIE 1976 hue angle formula for CIELab and CIELuv

MaxChromasForStandardMunsellHuesAndValues

Table with maximum Munsell chroma, for a given Munsell hue and value, for which an extrapolated renotation value is available

Convert CMYK coordinates to CMY

MaxChromaFromExtrapRenotationData

Table with maximum chroma for which extrapolated renotation data is available

CIE1931xy2CIE1976uv

Convert CIE 1931 xy color space to CIE 1976 uv color space

Convert LMS coordinates to XYZ

Convert HSV coordinates to RGB

Convert CMY coordinates to CMYK

CIE1976uvSaturation

CIE 1976 uv Saturation

Convert Hue to RGB

Hunter60.WhitenessIndex

Hunter 60 Whiteness Index

Convert RGB coordinates to LEF

Convert CIE Luv coordinates to Yuv

DominantWavelength

Convert CMY coordinates to CMYK

Convert LEF coordinates to RGB

MunsellV2relativeLuminanceY

Munsell value V to relative luminance Y

MaterialReferenceData

Material Reference Data from Principles of Digital Image Synthesis

CIE1931xy2CIE1960uv

Convert CIE 1931 xy color space to CIE 1960 uv color space

convert from three filter measurements (reflectance factors) to XYZ

Tint indices: CIE Tint and ASTM E313 Tint

The spectral reflectance data of 14 color test samples for CRI

Convert RGB coordinates to LSLM

CIEluminanceY2NCSblackness

approximated NCS blackness s by the CIE luminance factor Y

CIE1931XYZ2CIE1976uv

Convert CIE 1931 XYZ color space to CIE 1976 uv color space

convert from XYZ coordinates to Yuv coordinates

Convert CIE Lab coordinates to XYZ

Convert YUV coordinates to RGB

ISObrightnessReflectometerRSD

Weighting factors for the calculation of ISO brightness

Relative spectral power distributions of CIE illuminants at 5 nm interval

converts between spherical and cartesian coordinates for DKL

Munsell100hues55FM100

Munsell 100-Hues at 5/5, production numbers 101 to 200 and Farnsworth-Munsell 100 Hue test

MunsellNeutrals2sRGB

Table with Munsell Neutrals and corresponding sRGB

conversionLuminance

Conversion Factors for Units of Luminance

Convert RGB coordinates to PhotoYCC

convert spectral data to tristimulus values

convert from XYZ coordinates to Hunter Lab coordinates

convert from Yuv coordinates to xy coordinates

Convert RGB coordinates to YCbCr

Conversion from DIN99 coordinates to CIELAB color space

Convert YCbCr coordinates to RGB

convert from XYZ coordinates to CIE RGB coordinates

CIE 1964 10-deg, XYZ CMFs

Relative spectral power distributions of CIE illuminant A at 1 nm interval

Interpolates an n by w matrix of spectra, sprague

PreucilPercentGreyness

Preucil Percentage of Greyness

Y2MunsellVtable1D1535

CIE XYZ "Y" to Munsell value formula, based on the ASTM Standard D1535-08

convert from XYZ to three filter measurements (reflectance factors)

createIsoTempLinesTable

table of isotemperature lines for use with the Robertson Method

ChromaticAdaptation

Chromatic adaptation algorithms

Convert LMS coordinates to RGB

convert from XYZ coordinates to CIE Luv coordinates

Convert sRGB coordinates to XYZ

Relative spectral power distributions of CIE illuminant D65 at 1 nm interval

compuphaseDifferenceRGB

compuphase Difference RGB

Approximations from wavelengths to XYZ by Wyman et al

xy2CCT.HernandezAndres

convert from chromaticity coordinates to correlated color temperature (Hernandez Andres)

conversionIlluminance

Conversion Factors for Units of Illuminance

Convert CIE Luv coordinates to XYZ

XYZTannenbaum1974

Approximations from wavelengths to XYZ by Tannenbaum 1974

convert Munsell hue to degree

Stensby68.Whiteness

Stensby Whiteness

convert from Yxy coordinates to Yuv coordinates

Convert RGB coordinates to HSL

xyChromaticitiesVos1978

x, y coordinates transformed to Judd (1951) x', y' system

ASTM.E313.Whiteness

ASTM E313 Whiteness

daylightcomponents

daylight components

Taube60.Whiteness

Taube Whiteness

convert from XYZ coordinates to xyY coordinates

MunsellSpectral

Table with Munsell spectral data

Convert sRGB coordinates to hue

convert from Yxy coordinates to CIE 1960 UCS

CIE1976uv2CIE1931xy

CIE-1976 u'v' to CIE-1931 xy

Delta E (CIE 1976)

spectra2ISObrightness

Diffuse blue reflectance factor (ISO brightness)

heuristic.wlnm2RGB

Approximations from wavelengths to RGB

Convert CIE 1960 UCS color space to 1960 xy color space

GanzGrieser.Whiteness

Ganz and Grieser Whiteness

Delta E (CIE 2000)

ASTM.E313.YellownessIndex

ASTM E313 Yellowness

Convert LCHuv coordinates to CIE Luv

Approximates wavelength to CIE tristimulus XYZ

saturationCIECAM02

saturation CIECAM 2002

Correlated Color Temperature (CCT) from spectra

Convert XYZ coordinates to LMS

CIE1960UCS2CIE1964

Convert CIE 1960 UCS color space to CIE 1964 color space

CIE1931XYZ2CIE1931xyz

Convert CIE 1931 XYZ color space to CIE 1931 xyz color space

Primaries for RGB color spaces

convert RGB to DKL

Conversion from CIELAB color space to DIN99 coordinates

PreucilPercentHueError

Preucil Percentage of Greyness

saturationCIELUV

CIELUV/CIELAB saturation

whitepointsilluminants

White points of standard illuminants

Munsell100hues55

Chromaticity diagram showing values for x and y for Illuminant A for 100 hues at 5/5

Munsell value to CIE XYZ "Y"

emittanceblackbodyPlanck

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

saturationCIELABEvaLubbe

CIELAB saturation (Eva Lubbe)

Convert PhotoYCC to RGB

Convert RGB coordinates to LMS

Convert LSLM coordinates to RGB

Illuminance (Lux) from spectra

Convert sRGB coordinates to CMY

Convert RGB coordinates to HSV

XYZ2CCT.Robertson

convert from chromaticity coordinates to correlated color temperature (Robertson)

NickersonColorDifference

Nickerson Color Difference

Convert YIQ coordinates to RGB

Convert YCbCr coordinates to RGB

StearnsStearnscorrection

Stearns and Stearns correction

tristimulusMunsell

434 Munsell colors with tristimulus and CMFs for a few illuminants

convert from Yuv coordinates to XYZ coordinates

Convert RGB coordinates to YPbPr

convert from XYZ coordinates to CIE Lab coordinates

CIE 1931 2-deg, XYZ CMFs

XYZMoonSpencer1945

Approximations from wavelengths to XYZ by Moon & Spencer

Convert Yuv coordinates to Luv

CIE (1964) 10-deg chromaticity coordinates

Delta E (CIE 1994)

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

spectra2CRIGAIFSCI

CRI, GAI and FSCI from spectra

Internal colorscience functions

CIE XYZ "Y" to Munsell value

CIE (1931) 2-deg chromaticity coordinates

XYZperfectreflectingdiffuser

Perfect reflecting diffuser data

huedegreemunsell

Table with Munsell hue degrees

convert from chromaticity coordinates to correlated color temperature

Convert CIE CMF to XYZ