There is little support for scientific units for these see packages photobiology and colorscience The electronic camera model is purely linear with no dark current offset or other deviations. The only such operations are conversion of absorbance to transmittance, and the reparameterized wavelength \(\omega\) from \(\lambda\) in computeADL(). There is no support for 3D colors spaces other than XYZ and RGB see packages colorspace, colorscience, spacesRGB, and spacesXYZ for more 3D spaces. knitr, rmarkdown, and spacesRGB, required for building the vignettes.quadprog, may be used in responsivityMetrics() to determine whether the generators lie in an open linear halfspace.arrangements, makes the zonohedron calculations for optimal colors a little bit faster.microbenchmark, for a timer with higher precision than R’s built-in timer.rgl, required for plotting optimal colors in 3D.MASS, required for camera emulation, which uses the matrix pseudoinverse MASS::ginv().rootSolve, required for inverse colorimetry.spacesXYZ, required for computing CCT, and for some vignettes.Regarding the dependencies, the following packages are Suggests: Support for reading a few spectrum file types, including CGATSīonus files containing some other interesting spectra inverse colorimetry, e.g. reflectance recovery from responseīuilt-in essential tables, such as the CIE illuminants and color matching functionsĪ package logging system with log levels taken from the popular Log4J.Uniform handling of biological eyes, electronic cameras, and general action spectraĪ few advanced calculations, such as computing optimal colors (aka MacAdam Limits) įlexible organization for the spectra in memory, using an S3 class - colorSpecĪ product algebra for the colorSpec objects. ![]() Ī clear classification of the common color spectra into 4 types Many ideas are taken from packages hsdar, hyperSpec, pavo, photobiology, and zoo. And it works well with the more general action spectra. It supports the standard calculations with spectral properties of light sources, materials, cameras, eyes, scanners, etc. 10 Appendix A - Built-in colorSpec ObjectsĬolorSpec is an R package providing an S3 class with methods for color spectra.
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