A Robust Watermarking Scheme for Online Multimedia Copyright Protection Using New Chaotic Map

Table 5

A comparison of statistical analysis of other watermarking techniques [16–18] with the proposed work applied on different images. It can be seen that the proposed work has superior performance over the other works.

Images	Other Works	Analysis
		Homo.	Contrast	Energy.	Entropy	Corr.
Pepper	Original	0.8902	0.3311	0.1330	7.5612	0.9207
	Watermarked [16]	0.8917	0.3181	0.1233	7.6003	0.9295
	Watermarked [17]	0.8902	0.3311	0.1330	7.5613	0.9207
	Watermarked [18]	0.8512	0.3241	0.1520	7.4521	0.6241
	Watermarked, Proposed	0.8902	0.3311	0.1330	7.5641	0.9207
Lena	Original	0.8651	0.4141	0.0942	7.7021	0.9444
	Watermarked [16]	0.8687	0.3857	0.1288	7.2512	0.8933
	Watermarked [17]	0.8811	0.3371	0.1130	7.7023	0.9443
	Watermarked [18]	0.9277	0.2688	0.3208	7.6745	0.9688
	Watermarked, Proposed	0.8651	0.4141	0.0942	7.7045	0.9444
Baboon	Original	0.7294	1.0004	0.0817	7.3903	0.6607
	Watermarked [16]	0.8427	0.3531	0.1387	7.1872	0.8933
	Watermarked [17]	0.7294	1.0004	0.0817	7.3903	0.6607
	Watermarked [18]	0.7669	0.7179	0.1028	7.4521	0.6788
	Watermarked, Proposed	0.7294	1.0004	0.0817	7.3945	0.6607