Journal of Cloud Computing

Advances, Systems and Applications

Table 8 Results of left and right translation attacks

From: A robust encryption watermarking algorithm for medical images based on ridgelet-DCT and THM double chaos

Distance (%)	Left		Right
Distance (%)	PSNR	NC	PSNR	NC
3	13.00	0.9029	14.22	0.90
5	11.75	0.9029	12.28	0.90
7	11.38	0.8121	11.51	0.90
8	11.27	0.7441	11.38	0.90
9	11.14	0.7441	11.27	0.76
10	11.00	0.7441	11.14	0.76
15	10.05	0.7441	10.31	0.76
18	9.35	0.7441	9.56	0.67
20	8.95	0.6925	9.15	0.67

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