colorSpec: Color Calculations with Emphasis on Spectral Data (original) (raw)

Calculate with spectral properties of light sources, materials, cameras, eyes, and scanners. Build complex systems from simpler parts using a spectral product algebra. For light sources, compute CCT, CRI, SSI, and IES TM-30 reports. For object colors, compute optimal colors and Logvinenko coordinates. Work with the standard CIE illuminants and color matching functions, and read spectra from text files, including CGATS files. Estimate a spectrum from its response. A user guide and 9 vignettes are included.

Version: 1.8-0
Depends: R (≥ 4.0.0)
Imports: logger
Suggests: spacesXYZ (≥ 1.5-1), rootSolve, MASS, quadprog, rgl, spacesRGB, zonohedra (≥ 0.4-0), microbenchmark, arrangements, knitr, rmarkdown, png
Enhances: plyr
Published: 2025-06-10
DOI: 10.32614/CRAN.package.colorSpec
Author: Glenn Davis [aut, cre]
Maintainer: Glenn Davis
License: GPL (≥ 3)
Copyright: see file
NeedsCompilation: no
Citation: colorSpec citation info
Materials: README, NEWS
CRAN checks: colorSpec results

Documentation:

Reference manual: colorSpec.html , <colorSpec.pdf>
Vignettes: colorSpec User Guide (source, R code) Phenol Red - pH Indicator (source, R code) Photon Counting (source, R code) Blue Flame and Green Comet - being a Spectral Analysis of Comet Vapor (source, R code) Convexity and Transitions (source, R code) Emulation of one Camera by another Camera (source, R code) Viewing Object Colors in a Gallery (source, R code) Estimating a Spectrum from its Response - Inverse Colorimetry (source, R code) The Effect of the Aging Human Lens on Color Vision (source, R code) Plotting Chromaticity Loci of Optimal and Schrodinger Colors - the MacAdam Limits (source, R code)

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