Skip to main content

Table 5 Image classification accuracy by group in the four classes considered, where A = Asymptomatic trees, B = trees with less than 50% defoliation, C = trees with more than 50% defoliation, D = dead trees, PA = producer’s accuracy, UA = user’s accuracy, value shown in bold = overall accuracy. Classification and reference (field check) frequencies are arranged in rows and columns respectively

From: Assessing a novel modelling approach with high resolution UAV imagery for monitoring health status in priority riparian forests

  

Predicted

  
 

Health status

A

B

C

D

PA

Observed

A

24

4

2

0

30

0.80

B

7

4

1

0

12

0.33

C

3

3

2

6

14

0.14

D

0

0

1

24

25

0.96

 

34

11

6

30

54

 
 

UA

0.71

0.36

0.33

0.80

 

0.67

  1. Kappa index = 0.52