Threshold value | SSIM | Average Gradient |
T = 0.48 | 0.6979 | 3.5819 |
T = 0.50 | 0.6986 | 4.0220 |
T = 0.52 | 0.6989 | 4.5861 |
T = 0.54 | 0.6997 | 5.2440 |
T = 0.55 | 0.6995 | 5.5592 |