References

What perceptually uniform colorspaces are and why you should be using them:

• Ihaka, R. (2003). Colour for Presentation Graphics. In K Hornik, F Leisch, A Zeileis (eds.), Proceedings of the 3rd International Workshop on Distributed Statistical Computing, Vienna, Austria. ISSN 1609-395X

• Zeileis, A., Hornik, K., and Murrell, P. (2009). Escaping RGBland: Selecting colors for statistical graphics. Computational Statistics and Data Analysis, 53(9), 3259–3270. doi:10.1016/j.csda.2008.11.033

Functions in this library were mostly implemented according to:

• Schanda, J., ed. Colorimetry: Understanding the CIE system. Wiley-Interscience, 2007.

• Sharma, G., Wu, W., and Dalal, E. N. (2005). The CIEDE2000 color‐difference formula: Implementation notes, supplementary test data, and mathematical observations. Color Research & Application, 30(1), 21–30. doi:10.1002/col

• Ihaka, R., Murrel, P., Hornik, K., Fisher, J. C., and Zeileis, A. (2013). colorspace: Color Space Manipulation. R package version 1.2-1.

• Lindbloom, B. (2013). Useful Color Equations

• Wijffelaars, M., Vliegen, R., van Wijk, J., van der Linden, E-J. (2008). Generating Color Palettes using Intuitive Parameters

• Georg A. Klein Industrial Color Physics. Springer Series in Optical Sciences, 2010. ISSN 0342-4111, ISBN 978-1-4419-1197-1.