2.2. VISUAL FEATURES 15
Visual Clarity Score (VCS)
p.wjc/ p.wjk/ w
VCS D D
KL
.p.wjc/jjp.wjk//:
Visual Coherence Score (VCoS)
i
j
i
k
VCoS D
1
jM.M 1/j
X
j;kD1; ;M Ij ¤k
sim.i
i
; i
k
/:
M sim.i
j
; i
k
/
i
j
i
k
Visual Similarity Distribution Histogram (VSDH)
S
S
H
H
VSDH.h/ D
1
M
2
jf.j; k/jj; k M; m
j;k
2 h
th
bingj; h D 1; ; H:
Visual Diversity Score (VDS)