39
Dichromatic Plane
matte line
highlight
line
2 linear clusters
• matte points
• highlight
points
• The combined color cluster looks like a skewed T.
• Skewing angle depends on color difference
between
body and
surface reflection.
• As a heuristic, the highlight starts in the
upper 50%
of the
matte line.
c (l)
c (l)
s
b