EURASIP Journal on Information Security

Table 2 QBSD quality assessment compared with other quality metrics for 2 out of 2 visual secret sharing

From: A novel quality assessment for visual secret sharing schemes

Metric	Symbol			Square
name	T	Letters	Baboon	sign	Portrait	Zebra
Quality	Very			Very
rank	good	Good	Fair	good	Good	Poor
QBSD	0.80	0.78	0.73	0.83	0.77	0.70
Blackness	0.98	0.99	0.91	0.99	0.98	0.99
SSIM	0.11	0.93	0.19	0.17	0.24	0.89
MSE	2.9e4	1.8e3	2.3e4	2.7e4	2.4e4	2.8e3
PSNR	3.51	15.59	4.41	3.79	4.31	13.67
Contrast	0.502	0.52	0.540	0.502	0.506	0.620

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