{
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  "Package": "colorSpec",
  "Type": "Package",
  "Title": "Color Calculations with Emphasis on Spectral Data",
  "Version": "1.8-0",
  "Encoding": "UTF-8",
  "Date": "2025-06-08",
  "Authors@R": "person( given=\"Glenn\", family=\"Davis\", email=\"gdavis@gluonics.com\", role=c(\"aut\", \"cre\") )",
  "Maintainer": "Glenn Davis <gdavis@gluonics.com>",
  "Description": "Calculate with spectral properties of light sources,\nmaterials, cameras, eyes, and scanners. Build complex systems\nfrom simpler parts using a spectral product algebra. For light\nsources, compute CCT, CRI, SSI, and IES TM-30 reports.  For\nobject colors, compute optimal colors and Logvinenko\ncoordinates. Work with the standard CIE illuminants and color\nmatching functions, and read spectra from text files, including\nCGATS files.  Estimate a spectrum from its response. A user\nguide and 9 vignettes are included.",
  "License": "GPL (>= 3)",
  "LazyLoad": "yes",
  "LazyData": "yes",
  "NeedsCompilation": "no",
  "VignetteBuilder": "knitr",
  "BuildVignettes": "yes",
  "ByteCompile": "no",
  "Packaged": {
    "Date": "2026-05-10 07:45:40 UTC",
    "User": "root"
  },
  "Author": "Glenn Davis [aut, cre]",
  "Repository": "https://glenndavis52.r-universe.dev",
  "Date/Publication": "2025-06-10 13:10:06 UTC",
  "RemoteUrl": "https://github.com/cran/colorSpec",
  "RemoteRef": "HEAD",
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  "MD5sum": "092ddcb14963e1e9cd34b84a101b8d81",
  "_user": "glenndavis52",
  "_type": "src",
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  "_created": "2026-05-10T07:45:40.000Z",
  "_published": "2026-05-22T12:27:36.548Z",
  "_distro": "noble",
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  "_buildurl": "https://github.com/r-universe/glenndavis52/actions/runs/25623168492",
  "_status": "success",
  "_host": "GitHub-Actions",
  "_upstream": "https://github.com/cran/colorSpec",
  "_commit": {
    "id": "83d26efb86b5cfaac5c4f0b10118c5cfdf5b154b",
    "author": "Glenn Davis <gdavis@gluonics.com>",
    "committer": "cran-robot <csardi.gabor+cran@gmail.com>",
    "message": "version 1.8-0\n",
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    "email": "gdavis@gluonics.com",
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  "_owner": "cran",
  "_selfowned": true,
  "_usedby": 4,
  "_updates": [
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  "_tags": [
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      "date": "2025-06-10"
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  "_contributors": [
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    "type": "user",
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  "_downloads": {
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    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/colorSpec"
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  "_rbuild": "4.6.0",
  "_assets": [
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    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
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    "extra/contents.json",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "manual.pdf"
  ],
  "_realowner": "glenndavis52",
  "_cranurl": false,
  "_releases": [
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      "date": "2016-05-15"
    },
    {
      "version": "0.5-3",
      "date": "2016-05-16"
    },
    {
      "version": "0.6-1",
      "date": "2017-11-17"
    },
    {
      "version": "0.6-2",
      "date": "2017-12-04"
    },
    {
      "version": "0.7-3",
      "date": "2018-04-02"
    },
    {
      "version": "0.7-5",
      "date": "2018-11-19"
    },
    {
      "version": "0.8-3",
      "date": "2019-03-05"
    },
    {
      "version": "0.9-1",
      "date": "2019-05-31"
    },
    {
      "version": "1.0-1",
      "date": "2019-06-24"
    },
    {
      "version": "1.1-1",
      "date": "2019-12-07"
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    {
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      "date": "2020-04-01"
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    {
      "version": "1.3-0",
      "date": "2021-12-20"
    },
    {
      "version": "1.4-0",
      "date": "2022-05-04"
    },
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      "version": "1.5-0",
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  ],
  "_exports": [
    "actinometric",
    "applyspec",
    "as.colorSpec",
    "as.data.frame.colorSpec",
    "as.matrix.colorSpec",
    "atmosTransmittance",
    "bandMaterial",
    "bandRepresentation",
    "bind",
    "calibrate",
    "canonicalOptimalColors",
    "chop",
    "colorSpec",
    "computeADL",
    "computeCCT",
    "computeCRI",
    "computeCRIdata",
    "computeSSI",
    "computeTM30",
    "convolvewith",
    "coredata",
    "cs.options",
    "daylightSpectra",
    "DisplayRGBfromLinearRGB",
    "emulate",
    "erythemalSpectrum",
    "extradata",
    "extradata<-",
    "illuminantE",
    "insideOptimalColors",
    "insideSchrodingerColors",
    "interpolate",
    "invert",
    "is.actinometric",
    "is.colorSpec",
    "is.radiometric",
    "is.regular",
    "lensAbsorbance",
    "linearize",
    "mean.colorSpec",
    "metadata",
    "metadata<-",
    "multiply",
    "neutralMaterial",
    "normalize",
    "numSpectra",
    "numWavelengths",
    "officialXYZ",
    "organization",
    "organization<-",
    "photometric",
    "planckSpectra",
    "plot.colorSpec",
    "plot.TM30",
    "plotOptimals2D",
    "plotOptimals3D",
    "print.colorSpec",
    "print.TM30",
    "probeOptimalColors",
    "product",
    "ptransform",
    "quantity",
    "quantity<-",
    "radiometric",
    "readCGATS",
    "readSpectra",
    "readSpectraCGATS",
    "readSpectraControl",
    "readSpectraSpreadsheet",
    "readSpectraXYY",
    "readSpectrumScope",
    "rectangularMaterial",
    "referenceSpectraTM30",
    "resample",
    "responsivityMetrics",
    "RGBfromXYZ",
    "sectionOptimalColors",
    "sectionSchrodingerColors",
    "specnames",
    "specnames<-",
    "step.wl",
    "subset.colorSpec",
    "summary.colorSpec",
    "type",
    "wavelength",
    "wavelength<-"
  ],
  "_datasets": [
    {
      "name": "A.1nm",
      "title": "Standard Illuminants A, B, and C (1931)",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "numeric"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    },
    {
      "name": "ACES.RGB",
      "title": "Theoretical RGB Cameras - BT.709.RGB, Adobe.RGB, and ACES.RGB",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "r",
        "g",
        "b"
      ],
      "rows": 471,
      "table": true,
      "tojson": true
    },
    {
      "name": "Adobe.RGB",
      "title": "Theoretical RGB Cameras - BT.709.RGB, Adobe.RGB, and ACES.RGB",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "r",
        "g",
        "b"
      ],
      "rows": 471,
      "table": true,
      "tojson": true
    },
    {
      "name": "atmosphere2003",
      "title": "Standard Solar Irradiance - Extraterrestrial and Terrestrial",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "numeric"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    },
    {
      "name": "B.5nm",
      "title": "Standard Illuminants A, B, and C (1931)",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "numeric"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    },
    {
      "name": "BT.709.RGB",
      "title": "Theoretical RGB Cameras - BT.709.RGB, Adobe.RGB, and ACES.RGB",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "r",
        "g",
        "b"
      ],
      "rows": 471,
      "table": true,
      "tojson": true
    },
    {
      "name": "C.5nm",
      "title": "Standard Illuminants A, B, and C (1931)",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "numeric"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    },
    {
      "name": "D50.5nm",
      "title": "Standard Illuminant D50 (1964)",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "numeric"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    },
    {
      "name": "D65.1nm",
      "title": "Standard Illuminant D65 (1964)",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "numeric"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    },
    {
      "name": "D65.5nm",
      "title": "Standard Illuminant D65 (1964)",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "numeric"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    },
    {
      "name": "daylight1964",
      "title": "Standard Daylight Components",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "S0",
        "S1",
        "S2"
      ],
      "rows": 107,
      "table": true,
      "tojson": true
    },
    {
      "name": "daylight2013",
      "title": "Standard Daylight Components",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "S0",
        "S1",
        "S2"
      ],
      "rows": 531,
      "table": true,
      "tojson": true
    },
    {
      "name": "F96T12",
      "title": "Photon Irradiance of F96T12 Fluorescent Bulb",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "numeric"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    },
    {
      "name": "Flea2.RGB",
      "title": "Flea2 Camera FL2-14S3C from Point Grey",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "Red",
        "Green",
        "Blue"
      ],
      "rows": 45,
      "table": true,
      "tojson": true
    },
    {
      "name": "Fs.5nm",
      "title": "Standard series F Illuminants F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, and F12",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "F1",
        "F2",
        "F3",
        "F4",
        "F5",
        "F6",
        "F7",
        "F8",
        "F9",
        "F10",
        "F11",
        "F12"
      ],
      "rows": 81,
      "table": true,
      "tojson": true
    },
    {
      "name": "HigherPasserines",
      "title": "Cone Fundamentals for the Higher Passerines",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "UV",
        "Short",
        "Medium",
        "Long"
      ],
      "rows": 401,
      "table": true,
      "tojson": true
    },
    {
      "name": "Hoya",
      "title": "standard Hoya filters",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "data.frame"
      ],
      "fields": [
        "SAMPLE_NAME",
        "FresnelReflectance",
        "Thickness",
        "spectra"
      ],
      "rows": 4,
      "table": false,
      "tojson": true
    },
    {
      "name": "lms1971.5nm",
      "title": "Cone Fundamentals - 2-degree (1971)",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "long",
        "medium",
        "short"
      ],
      "rows": 81,
      "table": true,
      "tojson": true
    },
    {
      "name": "lms2000.1nm",
      "title": "Cone Fundamentals - 2-degree (2000)",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "long",
        "medium",
        "short"
      ],
      "rows": 441,
      "table": true,
      "tojson": true
    },
    {
      "name": "luminsivity.1nm",
      "title": "Luminous Efficiency Functions (photopic and scotopic)",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "data.frame"
      ],
      "fields": [
        "path",
        "spectra"
      ],
      "rows": 4,
      "table": false,
      "tojson": true
    },
    {
      "name": "scanner.ACES",
      "title": "standard RGB scanners",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "r",
        "g",
        "b"
      ],
      "rows": 181,
      "table": true,
      "tojson": true
    },
    {
      "name": "solar.irradiance",
      "title": "Standard Solar Irradiance - Extraterrestrial and Terrestrial",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "AirMass.0",
        "GlobalTilt",
        "AirMass.1.5"
      ],
      "rows": 721,
      "table": true,
      "tojson": true
    },
    {
      "name": "xyz1931.1nm",
      "title": "CIE Color Matching Functions - 2-degree (1931)",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "x",
        "y",
        "z"
      ],
      "rows": 471,
      "table": true,
      "tojson": true
    },
    {
      "name": "xyz1931.5nm",
      "title": "CIE Color Matching Functions - 2-degree (1931)",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "x",
        "y",
        "z"
      ],
      "rows": 81,
      "table": true,
      "tojson": true
    },
    {
      "name": "xyz1964.1nm",
      "title": "CIE Color Matching Functions - 10-degree (1964)",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "x",
        "y",
        "z"
      ],
      "rows": 471,
      "table": true,
      "tojson": true
    },
    {
      "name": "xyz1964.5nm",
      "title": "CIE Color Matching Functions - 10-degree (1964)",
      "object": "colorSpec",
      "class": [
        "colorSpec",
        "matrix"
      ],
      "fields": [
        "x",
        "y",
        "z"
      ],
      "rows": 81,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "colorSpec-package",
      "title": "Package colorSpec - Color Calculations with Emphasis on Spectral Data",
      "topics": [
        "colorSpec-package"
      ]
    },
    {
      "page": "ABC",
      "title": "Standard Illuminants A, B, and C (1931)",
      "topics": [
        "A.1nm",
        "ABC",
        "B.5nm",
        "C.5nm"
      ]
    },
    {
      "page": "actinometric",
      "title": "convert a colorSpec object to be actinometric",
      "topics": [
        "actinometric",
        "actinometric.colorSpec",
        "is.actinometric",
        "is.actinometric.colorSpec"
      ]
    },
    {
      "page": "TM30",
      "title": "Compute ANSI/IES TM-30 data, and Create Color Rendition Reports",
      "topics": [
        "computeTM30",
        "computeTM30.colorSpec",
        "plot.TM30",
        "print.TM30"
      ]
    },
    {
      "page": "applyspec",
      "title": "apply a function to each spectrum in a colorSpec object",
      "topics": [
        "applyspec",
        "applyspec.colorSpec"
      ]
    },
    {
      "page": "as.data.frame",
      "title": "Convert a colorSpec Object to a data.frame",
      "topics": [
        "as.data.frame.colorSpec"
      ]
    },
    {
      "page": "atmosphere",
      "title": "atmospheric transmittance along a horizontal path",
      "topics": [
        "atmosTransmittance"
      ]
    },
    {
      "page": "bandSpectra",
      "title": "Compute Band-based Material Spectra, and Bands for Existing Material Spectra",
      "topics": [
        "bandMaterial",
        "bandRepresentation",
        "bandRepresentation.colorSpec"
      ]
    },
    {
      "page": "bind",
      "title": "Combine colorSpec Objects",
      "topics": [
        "bind",
        "bind.colorSpec"
      ]
    },
    {
      "page": "calibrate",
      "title": "make a linear modification to a colorSpec responder",
      "topics": [
        "calibrate",
        "calibrate.colorSpec"
      ]
    },
    {
      "page": "canonicalOptimalColors",
      "title": "compute the Canonical Optimal Colors",
      "topics": [
        "canonicalOptimalColors",
        "canonicalOptimalColors.colorSpec"
      ]
    },
    {
      "page": "chop",
      "title": "chop spectra into low and high parts",
      "topics": [
        "chop",
        "chop.colorSpec"
      ]
    },
    {
      "page": "colorSpec",
      "title": "constructing and testing colorSpec Objects",
      "topics": [
        "as.colorSpec",
        "as.colorSpec.default",
        "colorSpec",
        "is.colorSpec"
      ]
    },
    {
      "page": "computeADL",
      "title": "compute ADL coordinates by ray tracing",
      "topics": [
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      "page": "convolvewith",
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      "page": "D50",
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      "page": "plotOptimals",
      "title": "Plot Optimal Colors",
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      "page": "print",
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    {
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      "page": "ptransform",
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      "page": "responsivityMetrics",
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      "page": "sectionOptimalColors",
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      "page": "sectionSchrodingerColors",
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      "page": "specnames",
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