Methods | 熵 | 平均梯度 | 空间频率 | 标准差 |
CVT | 6.704 | 4.3735 | 10.9842 | 29.1967 |
DTCWT | 6.6894 | 4.1929 | 10.9001 | 28.9651 |
NSCT | 6.7165 | 4.4055 | 11.0619 | 29.4857 |
本文方法 | 6.7552 | 5.1 | 14.0882 | 33.8282 |