Methods | 熵 | 平均梯度 | 空间频率 | 标准差 |
CVT | 6.7814 | 8.1701 | 20.8959 | 40.314 |
DTCWT | 6.7571 | 8.1317 | 21.1552 | 40.6221 |
NSCT | 6.7692 | 8.3571 | 21.4802 | 41.2466 |
本文方法 | 6.768 | 12.6133 | 32.0822 | 54.8886 |