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Table 2 Average MSE (× 103) comparison for different nos. of noisy pixels

From: An adaptive dynamically weighted median filter for impulse noise removal

Filters 1 2 3 4 8 11 12 13 19 20 21
Median 3 × 3 0.66 0.93 1.20 1.58 201.17       
Median 5 × 5 0.99 1.05 1.11 1.24 1.39 1.62 1.82 2.11 47.03 53.31 50.43
Median 7 × 7 1.17 1.23 1.45 1.42 1.75 1.50 1.49 1.63 1.90 1.8 1.85
W median 3 × 3 0.75 1.10 1.45 20.131 219.25       
W median 5 × 5 0.83 0.90 0.95 1.08 1.25 1.92 2.95 5.15 74.12 73.78 64.52
W median 7 × 7 0.95 0.98 1.12 1.09 1.36 1.19 1.18 1.31 1.54 1.49 1.56
Proposed 3 × 3 0.63 0.64 0.78 0.95 297.3       
Proposed 5 × 5 0.79 0.8 0.86 0.91 0.94 1.02 1.07 1.14 2.14 1.90 2.55
Proposed 7 × 7 1.25 1.12 0.99 1.08 1.33 1.09 1.12 1.13 1.35 1.18 1.15