From: A novel quality assessment for visual secret sharing schemes
Metric | Symbol | Â | Â | Square | Â | Â |
---|---|---|---|---|---|---|
name | T | Letters | Baboon | sign | Portrait | Zebra |
Quality | Very | Â | Â | Very | Â | Â |
rank | good | Good | Fair | good | Good | Poor |
QBSD | 0.74 | 0.71 | 0.68 | 0.73 | 0.72 | 0.68 |
Blackness | 0.73 | 0.75 | 0.66 | 0.74 | 0.73 | 0.74 |
SSIM | 0.02 | 0.02 | 0.14 | 0.03 | 0.05 | 0.04 |
MSE | 1.6e4 | 1.6e4 | 1.9e4 | 1.6e4 | 1.7e4 | 1.7e4 |
PSNR | 5.99 | 5.86 | 5.35 | 6.00 | 5.89 | 5.86 |
Contrast | 0.182 | 0.193 | 0.265 | 0.174 | 0.184 | 0.29 |