Table 2. Assessment of the accuracy of the land-use classification for 2006 by verification using Quickbird images from GoogleEarth.
| |
| |
|
Image classification |
Quickbird image |
|
|
|
|
|
Forest |
Plantation |
Agriculture |
Mixed |
Pasture |
Campos |
Urban |
| |
|
Forest |
118 |
4 |
2 |
4 |
4 |
2 |
– |
|
Plantation |
6 |
97 |
2 |
3 |
3 |
4 |
– |
|
Agriculture |
1 |
3 |
78 |
10 |
3 |
3 |
2 |
|
Mixed |
– |
1 |
7 |
73 |
6 |
1 |
– |
|
Pasture |
– |
1 |
5 |
8 |
62 |
9 |
1 |
|
Campos |
1 |
– |
3 |
1 |
– |
78 |
1 |
|
Urban |
1 |
– |
– |
5 |
3 |
– |
79 |
|
Other |
1 |
0 |
1 |
0 |
3 |
0 |
0 |
|
Total |
128 |
106 |
98 |
104 |
84 |
97 |
83 |
|
Accuracy (%) |
92.2 |
91.5 |
79.6 |
70.2 |
73.8 |
80.4 |
95.2 |
|
Total accuracy (%) |
83.6 |
|
| |
|