571 |
|
|
572 |
Even though the CIE $L^*a^*b^*$ \cite{cie86colorimetry} color space |
Even though the CIE $L^*a^*b^*$ \cite{cie86colorimetry} color space |
573 |
is fairly perceptually uniform, it is not good for selecting |
is fairly perceptually uniform, it is not good for selecting |
574 |
single, random colors: |
random colors: |
575 |
using a uniformly chosen hue angle |
using a uniformly chosen hue angle |
576 |
produces too much blue and too little yellow |
produces too much blue and too little yellow |
577 |
for high $L^*$. |
for high $L^*$. |
603 |
%For example, the CIE $L^*a^*b^*$ \cite{cie86colorimetry} |
%For example, the CIE $L^*a^*b^*$ \cite{cie86colorimetry} |
604 |
%color space is reasonably perceptually uniform. |
%color space is reasonably perceptually uniform. |
605 |
|
|
606 |
To produce chromatically compatible colors, we choose |
Hues are chosen from a distribution which usually clusters |
607 |
the hue angles for the base colors of a single background |
them fairly close together but also allows far-away hues |
608 |
from a distribution |
in the same palette occasionally. |
|
concentrated |
|
|
on one random hue with a random variance |
|
|
(hyperparameters). |
|
|
This produces related colors with high probability, but still |
|
|
allows motley palettes to occur occasionally. |
|
|
Opposite color schemes could also be used for more variation, |
|
|
but because the combiners can produce any color in the convex hull |
|
|
of the palette, the interpolated colors would easily span too |
|
|
much area on the color circle. |
|
609 |
The saturations are chosen by an ad hoc distribution. |
The saturations are chosen by an ad hoc distribution. |
610 |
|
|
611 |
|
% To produce a palette of |
612 |
|
% chromatically compatible colors, we choose |
613 |
|
% the hue angles for the base colors of a single background |
614 |
|
% from a distribution |
615 |
|
% concentrated |
616 |
|
% on one random hue with a random variance |
617 |
|
% (hyperparameters). |
618 |
|
% This produces related colors with high probability, but still |
619 |
|
% allows motley palettes to occur occasionally. |
620 |
|
|
621 |
|
% Opposite color schemes could also be used for more variation, |
622 |
|
% but because the combiners can produce any color in the convex hull |
623 |
|
% of the palette, the interpolated colors would easily span too |
624 |
|
% much area on the color circle. |
625 |
|
|
626 |
% Uniform? |
% Uniform? |
627 |
% 1) define term |
% 1) define term |
628 |
% 2) not really uniform; it's MORE uniform than RGB but not |
% 2) not really uniform; it's MORE uniform than RGB but not |