Full text: Remote sensing for resources development and environmental management (Volume 1)

515 
Table 2. Classificati®n performance i n Area-1 by applying the supervised classificatien (%) 
data was un- 
ie image qua- 
s was carried 
>n technique, 
e also applied, 
e classifi- 
dnimum dis 
pnee) algeri- 
his classi- 
' each pixel 
the pixel 
he nearer 
a special 
likelihood 
can be pro- 
ght t® be 
®n the micro- 
y, the re are 
sificati®n 
neighbours, 
degree of 
r from pixel 
ation can 
cation pre- 
ial benefit 
removal of 
eous areas 
ne classifi- 
he majority 
Fig.l. A 
e (3x3, 5x5) 
d image and 
n is changed 
rrounding 
tudy the cla- 
d using a 
assification 
A A 
A В 
A A 
assification 
А в 
С В 
В A 
fi Iter 
3) 
esuits were 
of its accu- 
y assessment 
and cenf«- 
ix is a square 
Land sat class 
Ground class 
Closed Forest 
Open Forest 
Regrowth 
Shifting 
cultivation 
Grassland Bare spil 
Closed forest 
80.74 
4.44 
2.96 
3.70 
5.92 
2.22 
Open forest 
25.92 
34.07 
5.92 
5.18 
25.18 
3.70 
Regrowth 
9.62 
14.07 
31.85 
10.37 
25.92 
8.14 
Shifting culti 
vation 
8.14 
13.03 
17.03 
28.14 
22.22 
11.11 
Gras si sind 
8.33 
8.33 
11.11 
9.72 
56.94 
5.55 
Bare soil 
6.34 
15.87 
4.76 
6.34 
31.74 
34.92 
OVERALL ACCURACY: 
6 Classes = 
44.29%, 2 classes = 85. 
92% 
Table 3. Classification performance in Area-1 
by applying the reclassification 
(%) . 
Landsat class 
Closed Forest 
Open Forest 
Regrowth 
Shifting 
cultivation 
Gras c land Bare sei; 
Ground class 
Closed forest 
89.62 
2.22 
2.22 
1.48 
2.96 
1.48 
Open forest 
30.37 
29.62 
5.92 
3.70 
28.14 
2.22 
Regrowth 
14.81 
12.59 
30.37 
2.22 
33.33 
6.66 
Shifting culti 
vation 
14.07 
10.37 
17.03 
20.00 
28.88 
9.62 
Grassland 
11.11 
5.55 
9.72 
4.16 
66.66 
2.77 
Bare soil 
6.34 
4.76 
6.34 
4.76 
49.20 
28.57 
OVERALL ACCURACY: 
6 classes = 
! 43.7% 2 classes = 84. 
29% 
Table 4. Classification performance in Area-2 
by applying the supervised classification (%), 
Landsat class 
Ground class 
Closed Forest Dense Mixed 
Bamboo Forest 
Open Forest 
Scrub 
Bare soil 
Closed forest 
77.77 
0.00 
18.51 
2.96 
0.74 
Dense mixed 
bamboe forest 
8.14 
66.66 
6.66 
17.03 
1.48 
Open forest 
31.85 
0.00 
38.51 
25.18 
4.44 
Scrub 
11.11 
6.66 
22.22 
54.17 
5.92 
Bare soil 
1.58 
6.34 
22.22 
61.90 
7.93 
OVERALL ACCURAC 
Y: 
5 classes = 
53.89% 2 classes =» 79.60% 
Table 5. Classification performance in Area-2 
by applying the reclassification 
(%). 
Landsat class 
Ground class 
Closed Forest Dense Mixed 
Bamboo Forest 
Open Forest 
Scrub 
Bare soil 
Closed forest 
93.33 
0.00 
5.18 
1.48 
0.00 
Pense mixed 
bamboo forest 
5.92 
72.59 
3.70 
17.03 
0.74 
Open forest 
28.14 
0.00 
45.92 
25.92 
0.00 
Scrub 
7.40 
4.44 
19.25 
68.14 
0.74 
Bare soil 
0.00 
1.58 
20.63 
76.19 
1.58 
OVERALL ACCURACY: 5 classes = 62.85% 2 classes = 85.73%
	        
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