Research Article

Two-Layer Fragile Watermarking Method Secured with Chaotic Map for Authentication of Digital Holy Quran

Table 10

PSNR result on Gaussian blurring.

#ā€‰123456789101112131415

JPEG
001Bef.40.7440.1243.0645.0147.6148.9950.6551.2051.8052.0552.1952.2552.2752.2852.30
Aft.43.9143.4945.6246.8548.2448.8249.3949.5449.7049.7649.8049.8149.8149.8249.82
003Bef.42.5041.9344.8646.7549.2750.6951.8452.6953.0052.9953.2453.2753.2753.2953.28
Aft.44.8544.4946.4947.5448.6449.0849.3949.5849.6449.6449.6849.6949.6949.6949.69
050Bef.42.2041.6144.5546.3748.9050.2651.6252.3552.7152.8852.9853.0153.0453.0653.06
Aft.44.5944.2146.1747.1748.2348.6949.0449.2049.2749.3049.3249.3249.3349.3349.33
601Bef.41.9741.2244.1546.1448.6849.9751.5252.1252.4852.7552.8952.9052.9352.9452.95
Aft.44.4243.9245.8546.9448.0248.4248.8248.9449.0049.0649.0849.0849.0949.0949.09

PNG
001Bef.38.7838.0542.9443.9448.1050.0453.8456.0559.6462.3566.3768.8072.3674.0180.24
Aft.46.3344.9249.8750.5554.4755.4057.6358.4459.4359.7460.0360.1360.1860.2060.22
003Bef.38.0237.3941.3043.2247.2049.3552.9555.2958.6961.1765.5268.3570.8173.7578.57
Aft.45.3944.3248.0449.6452.8053.9155.4756.1256.6856.9057.1057.1557.1757.1957.20
050Bef.37.3436.8141.3042.7446.4348.8952.3254.7758.1060.8664.0167.7770.2173.0079.44
Aft.44.1844.0147.9149.1151.4952.8854.0854.6355.0455.2255.3455.4055.4255.4455.45
601Bef.37.1536.5540.3142.6446.3048.5852.1254.4957.7060.6664.1167.7170.9674.7876.58
Aft.43.9443.6346.9248.7750.9652.1453.2553.7054.0454.2154.3154.3554.3754.3854.39