Kovesi (2014, 2015) presented a collection of colour sequences
that have uniform perceptual contrast over their whole range. The dataset Kovesi
provides these data. It is a
hyperframe
with 41 rows, in which each row provides information
about one colour sequence.
Additional information in each row specifies whether the
colour sequence is linear, diverging,
rainbow, cyclic, isoluminant
and/or ternary as defined by Kovesi (2014, 2015).
The colour signature is a string composed of letters
representing the successive hues, using the following code:
ll{
r red
g green
b blue
c cyan
m magenta
y yellow
o orange
v violet
k black
w white
j grey (j rhymes with grey)
}
For example kryw
is the sequence from black to red to yellow to
white.
The column values
contains the colour data themselves.
The i
th colour sequence is Kovesi$values[[i]]
,
a character vector of length 256.