dalton {dichromat} | R Documentation |
A 256-color palette as it would appear with normal vision, and with two types of red-green colorblindness: protanopia and deuteronopia.
data(dalton)
dalton
A 256x3x3 array. The columns index the red, green and blue color
values, the layers index the vision type.
dalton.colors
: A data frame of colors, with column names
normal
, protan
, deutan
.
http://tsi.enst.fr/~brettel/CRA24/table2.html
F. Vienot, H. Brettel and J. D. Mollon (1999) Digital video colourmaps for checking the legibility of displays by dichromats. Color Research and Application 24, 243-252.
data(dalton) par(mfrow=c(3,1)) image(matrix(1:256,128),col=dalton.colors$deutan) image(matrix(1:256,128),col=dalton.colors$protan) image(matrix(1:256,128),col=dalton.colors$normal)