length of V

for DWT

Size of image

for FIS

Accuracy of recognition

(DWT ) [21]

Accuracy of recognition

(PCA + DWT) [22] [23]

Accuracy of recognition

(FIS + DWT) [24]

Accuracy of recognition

(FIS + PCA + DWT)

4

8 × 8

0.814

0.872

0.886

0.891

6

16 × 16

0.835

0.897

0.902

0.933

8

32 × 32

0.844

0.942

0.939

0.947

10

64 × 64

0.863

0.951

0.944

0.958