Digital Signal Processing Reference
In-Depth Information
and
γ
=
1 in simulation. If the difference value of the projection exceeds the thresh-
old
255 otherwise set to 0. Finally,
simulation will be terminated if the pixel number of gray
Π
, then the searching point is set to gray level
=
=
0 has exceeded certain
threshold number
N
c
.
2.3.4
Simulation Results
Figure
2.17
a,b show the result of SSS and FQS algorithm, separately. The sim-
ulation sequence Mitq, Clair, Bream, and Students are shown in Fig.
2.18
a. The
desired color objects that are to be segmented are shown as arrow marks. Applying
the SHVS algorithm on the four sequences, the segmented results are shown from
Fig.
2.18
b. Comparing the Mitq segmentation results in Figs.
2.18
and
2.17
, it can
be shown that the SHVS algorithm is better than the other two search algorithms.
Figure
2.19
shows the segmentation results of Bream sequence with two different
parameters according to (
2.39
): (a)
α
=
2,
β
=
1, and
γ
=
1and(b)
α
=
2,
β
=
1,
and
γ
=
0.
Fig. 2.17
(
a
) SSS (
b
) FQS Segmentation Results of Mitq sequence
Fig. 2.18
(
a
) Original sequences (Desired color objects are marked with arrows) (
b
) Segmentation
results by SHVS Methods
