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

Table 8

PSNR result before and after pixel manipulation.

#		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
JPEG
001	Bef.	40.74	40.12	43.06	45.01	47.61	48.99	50.65	51.20	51.80	52.05	52.19	52.25	52.27	52.28	52.30
	Aft.	40.98	40.40	43.16	44.98	47.33	48.53	49.89	50.33	50.79	50.97	51.07	51.11	51.13	51.13	51.15
003	Bef.	42.50	41.93	44.86	46.75	49.27	50.69	51.84	52.69	53.00	52.99	53.24	53.27	53.27	53.29	53.28
	Aft.	42.67	42.13	44.91	46.64	48.87	50.06	50.95	51.59	51.81	51.81	51.98	52.00	52.00	52.01	52.01
050	Bef.	42.20	41.61	44.55	46.37	48.90	50.26	51.62	52.35	52.71	52.88	52.98	53.01	53.04	53.06	53.06
	Aft.	42.42	41.87	44.66	46.38	48.68	49.86	50.97	51.55	51.82	51.95	52.04	52.06	52.08	52.09	52.09
601	Bef.	41.97	41.22	44.15	46.14	48.68	49.97	51.52	52.12	52.48	52.75	52.89	52.90	52.93	52.94	52.95
	Aft.	42.19	41.47	44.25	46.09	48.39	49.49	50.75	51.21	51.48	51.68	51.78	51.79	51.81	51.82	51.82
PNG
001	Bef.	38.78	38.05	42.94	43.94	48.10	50.04	53.84	56.05	59.64	62.35	66.37	68.80	72.36	74.01	80.24
	Aft.	76.38	75.57	76.50	75.44	78.33	79.67	79.67	79.67	79.67	79.67	79.67	79.67	79.67	79.67	79.67
003	Bef.	38.02	37.39	41.30	43.22	47.20	49.35	52.95	55.29	58.69	61.17	65.52	68.35	70.81	73.75	78.57
	Aft.	73.43	76.73	71.22	71.60	72.42	72.42	72.42	72.42	72.42	70.92	72.42	72.42	72.42	72.42	72.42
050	Bef.	37.34	36.81	41.30	42.74	46.43	48.89	52.32	54.77	58.10	60.86	64.01	67.77	70.21	73.00	79.44
	Aft.	73.31	74.07	77.13	77.80	78.51	73.47	76.90	76.90	76.90	76.90	76.90	76.90	76.90	76.90	76.90
601	Bef.	37.15	36.55	40.31	42.64	46.30	48.58	52.12	54.49	57.70	60.66	64.11	67.71	70.96	74.78	76.58
	Aft.	71.00	70.84	72.44	72.44	74.74	74.69	75.02	75.02	75.02	75.02	75.02	75.02	75.02	75.02	75.02