Table 14: PSNR results on median filtering attack.

#123456789101112131415

JPEG
001Bef.40.7440.1243.0645.0147.6148.9950.6551.2051.8052.0552.1952.2552.2752.2852.30
Aft.41.8141.7542.1142.2042.2842.2942.3142.3242.3242.3242.3242.3242.3342.3342.33
003Bef.42.5041.9344.8646.7549.2750.6951.8452.6953.0052.9953.2453.2753.2753.2953.28
Aft.41.5141.4441.8742.0042.1042.1342.1542.1642.1642.1642.1642.1642.1642.1642.16
050Bef.42.2041.6144.5546.3748.9050.2651.6252.3552.7152.8852.9853.0153.0453.0653.06
Aft.41.2341.1741.5741.6941.7841.8041.8341.8441.8441.8441.8441.8441.8441.8441.84
601Bef.41.9741.2244.1546.1448.6849.9751.5252.1252.4852.7552.8952.9052.9352.9452.95
Aft.40.9340.8341.2241.3241.3941.4141.4441.4441.4441.4541.4541.4541.4541.4541.45

PNG
001Bef.38.7838.0542.9443.9448.1050.0453.8456.0559.6462.3566.3768.8072.3674.0180.24
Aft.38.6637.9542.6443.5747.1948.6951.1352.1553.2753.7854.1554.2754.3554.3754.41
003Bef.38.0237.3941.3043.2247.2049.3552.9555.2958.6961.1765.5268.3570.8173.7578.57
Aft.37.8337.2340.9042.6045.7947.2249.0749.8850.6250.9151.1851.2651.2951.3251.34
050Bef.37.3436.8141.3042.7446.4348.8952.3254.7758.1060.8664.0167.7770.2173.0079.44
Aft.37.0936.5840.7141.9244.7246.2147.7348.4549.0149.2849.4449.5349.5649.5749.59
601Bef.37.1536.5540.3142.6446.3048.5852.1254.4957.7060.6664.1167.7170.9674.7876.58
Aft.36.8436.2539.6941.6544.2845.5646.9947.6148.0948.3348.4748.5448.5748.5848.59