Table 3: Comparative restoration results in PSNR (dB) and MAE (the second row) for random-valued impulse noise.

MethodLena imageBoats image
% % % % % % % %

Noisy image16.2514.4813.1912.2715.9914.2512.9411.97
6.92310.4113.9617.268.33212.3716.7520.88
3 × 3 median filter31.5428.1724.6821.6029.2226.5523.4620.48
1.7702.4503.6925.6332.2162.8464.0035.928
5 × 5 median filter30.1429.1127.7725.5327.3126.6425.5623.61
2.2132.6063.2144.3003.0853.3493.8685.068
SDROM35.3933.4431.4829.5132.4030.5428.8827.43
0.6200.9721.3621.8301.1951.5862.2792.864
ROAD-TRIF34.6633.0531.1929.4331.8530.2528.6527.41
1.0041.1711.5051.9191.4771.7112.3812.869
ROLD-EPR34.8433.1531.2829.4432.0430.3228.7227.42
0.7431.0741.4111.9111.3301.6072.3152.867
RORD-WMF35.4933.5231.6129.7032.4530.7329.0727.37
0.5980.9601.2871.7621.1871.5742.2302.884
DWM34.4432.5130.7028.7431.5529.7728.1226.40
0.8381.5461.7482.7371.5101.9082.7843.233
DARD-BF35.1433.0831.1629.1832.2130.2328.5127.20
0.7031.1201.5242.0141.2861.7152.4462.997
SG-DARD-TRIF35.2333.2331.3729.4532.3230.3428.6727.39
0.6511.0051.3891.9031.2181.6042.3782.876