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

Table 4

Experimental results of the uniqueness experiment.

(a) Lena

	Mandrill	Sailboat	Peppers	F-16	Opera	Watch	New York	Tiffany	Terraux	Fourviere	Lena
Watermark
AR (%)	73.07	73.69	73.07	69.80	70.39	70.09	71.34	70.26	69.78	70.26	99.93
Fingerprint
AR (%)	59.06	56.03	49.24	62.72	59.62	44.34	62.35	60.40	45.65	63.21	99.93

(b) Mandrill

	Lena	Sailboat	Peppers	F-16	Opera	Watch	New York	Tiffany	Terraux	Fourviere	Mandrill
Watermark
AR (%)	73.74	73.69	73.07	72.73	73.52	73.79	72.64	74.35	73.82	72.2	99.76
Fingerprint
AR (%)	58.2	57.81	62.08	57.84	59.45	60.03	59.64	54.35	59.01	60.38	99.76

(c) Sailboat

	Lena	Mandrill	Peppers	F-16	Opera	Watch	New York	Tiffany	Terraux	Fourviere	Sailboat
Watermark
AR (%)	73.74	73.07	73.07	72.73	73.52	73.79	72.64	74.35	73.82	72.2	99.98
Fingerprint
AR (%)	54.32	59.06	53.44	57.91	55.1	52.37	56.47	55.37	53.78	59.4	99.98

(d) Peppers

	Lena	Mandrill	Sailboat	F-16	Opera	Watch	New York	Tiffany	Terraux	Fourviere	Peppers
Watermark
AR (%)	73.74	73.07	73.69	72.73	73.52	73.79	72.64	74.35	73.82	72.2	99.63
Fingerprint
AR (%)	47.02	60.13	46.08	55.59	58.69	49.29	53.26	52.8	54.66	55.77	99.63