Algorithm

dim

Acc ± std%

(clean)

Acc ± std%

(noised)

Diff%

2DPCA

112 × 30

66.66 ± 1.18

62.50 ± 1.25

4.16

2DPCA-L1

112 × 30

67.50 ± 1.14

64.10 ± 1.52

3.40

（2D) 2PCA

50 × 50

73.33 ± 1.09

70.19 ± 1.50

3.14

Angel-2DPCA

112 × 30

75.83 ± 1.01

73.22 ± 1.29

2.61

B-Fp-2DPCA (p = 1)

30 × 30

79.16 ± 1.12

77.45 ± 1.49

1.71

B-Fp-2DPCA (p = 0.5)

30 × 30

81.66 ± 1.04

79.98 ± 1.35

1.68