Colour Vision Models R package colourvision version 2.1.0 Colour vision models, colour spaces and colour thresholds. Provides flexibility to build user-defined colour vision models for n number of photoreceptor types. Includes Vorobyev & Osorio (1998) Receptor Noise Limited models <doi:10.1098/rspb.1998.0302>, Chittka (1992) colour hexagon <doi:10.1007/BF00199331>, and Endler & Mielke (2005) model <doi:10.1111/j.1095-8312.2005.00540.x>. Models have been extended to accept any number of photoreceptor types. Software Imports: graphics, stats, utils, Matrix Suggests: testthat, knitr, rmarkdown, corrplot, rgl Felipe Malheiros Gawryszewski <f.gawry@gmail.com> Comprehensive R Archive Network (CRAN) Felipe Malheiros Gawryszewski [aut, cre] GPL-2 2025-01-08 application/tgz https://CRAN.R-project.org/package=colourvision doi:10.32614/CRAN.package.colourvision