Combining Digital Watermarking and Fingerprinting Techniques to Identify Copyrights for Color Images

Table 3

The resulting AR values of the test images.

Attacks		AR (%) (Watermarking/fingerprinting)
		Lena	Mandrill	Sailboat	Peppers	Average
None		99.93/99.93	99.76/99.76	99.98/99.98	99.63/99.63	99.83/99.83
JPEG	(90)	88.31/99.71	86.84/99.44	88.04/99.88	88.16/99.49	87.84/99.63
	(80)	79.76/99.73	76.17/99.02	77.29/99.58	77.91/99.12	77.78/99.36
	(70)	74.58/99.46	72.12/98.73	72.61/99.54	73.05/99.17	73.09/99.23
	(60)	71.58/99.63	70.14/98.1	70.19/99.44	69.95/98.83	70.47/99.00
	(50)	71.48/99.41	70.09/97.68	70.43/99.24	69.8/98.88	70.45/98.80
Contrast	(10)	92.6/99.85	80.71/99.78	88.62/99.95	90.31/99.27	88.06/99.71
	(20)	82.86/99.76	73.12/99.56	79.27/99.78	81.81/98.68	79.27/99.45
	(30)	75.85/99.46	70.61/99.07	75.22/99.63	74.63/98.07	74.08/99.06
	(40)	72.61/99.27	70.83/97.92	72.31/99.19	72.51/98.14	72.07/98.63
	(50)	71.7/98.93	70.41/96.19	71.19/98.75	71.09/96.58	71.10/97.61
	(60)	70.39/97.68	70.65/92.7	70.95/98.1	70.53/95.8	70.63/96.07
	(70)	70.8/94.65	70.65/90.31	71.12/97.71	71.36/95	70.98/94.42
Gauss blurring	(0.5)	83.64/99.41	73.44/97.29	78.17/99.17	80.54/99.05	78.95/98.73
	(1.0)	76.1/98.88	70.92/95.78	74.17/98.44	73.88/98.34	73.77/97.86
	(1.5)	73.63/98.17	70.95/94.34	72.44/97.29	72.34/97.73	72.34/96.88
Scaling	w: 256, h: 256	71.66/97.92	70.75/92.53	71.22/96.83	70.73/95.8	71.09/95.77
	w: 128, h: 128	72.83/96.02	73.41/86.04	73.49/94.04	73.41/92.99	73.29/92.27
Brightness	(10)	96.66/96.78	94.41/94.92	97.85/97.85	94.46/94.46	95.85/96.00
	(20)	90.65/91.48	89.06/90.7	95.9/95.9	88.33/88.33	90.99/91.60
	(30)	85.72/87.62	83.98/86.43	93.55/93.58	83.69/83.64	86.74/87.82
Cropping	w: 480, h: 480	89.62/92.92	88.99/92.46	91.48/95.04	88.77/91.87	89.72/93.07
	w: 448, h: 448	82.71/86.82	81.71/85.67	83.79/88.89	82.03/85.82	82.56/86.80
	w: 432, h: 432	79.88/83.08	79.25/83.01	81.13/86.23	79/83.3	79.82/83.91
	w: 424, h: 432	78.88/81.76	78.49/81.96	80.52/85.86	78.59/83.06	79.12/83.16
	w: 424, h: 424	78.22/81.2	78/81.49	80.25/85.33	78.1/82.42	78.64/82.61