Object-Based Distinction between Building Shadow and Water in High-Resolution Imagery Using Fuzzy-Rule Classification and Artificial Bee Colony Optimization

Table 4

(a) Comparison of confusion matrixes using F-ABC and SVM for site A. (b) Comparison of confusion matrixes using F-ABC and SVM for site B.

(a)

Class	SVM				F-ABC
	Water	Shadow	Others	PA%	Water	Shadow	Others	PA%
Water	4975	1390	28	77.82	5332	794	267	83.40
Shadow	130	4545	546	87.05	182	4852	187	92.93
UA%	97.45	76.58			96.70	85.94
OA%	81.97				87.69
Kappa	0.6588				0.7633

(b)

Class	SVM				F-ABC
	Water	Shadow	Others	PA%	Water	Shadow	Others	PA%
Water	6494	259	3353	64.25	9353	340	413	92.55
Shadow	0	8111	2144	79.09	78	8347	1830	81.39
UA%	100	96.91			99.17	96.09
OA%	71.73				86.93
Kappa	0.5591				0.7646

Note: UA stands for user’s accuracy, PA stands for producer’s accuracy, and OA stands for overall accuracy.