求翻译：后退法依次从方程中剔除的变量为灰度均方差T7、梯度平均值T6、梯度分布的不均匀性T3、小梯度优势T1、混合熵T12、灰度平均值T5、惯性T13。是什么意思？

Backward method in turn removed from the equation variables to grayscale variance t7, gradient average of t6, a heterogeneity t3 of the gradient, small gradient advantage t1, t12, of the entropy of mixing, the average gray t5 inertia t13.

Back then the law of the excluded variables in an equation for the variance are gray, gradient averages 7 T T 6, gradient is not evenly distributed, T 3, small gradient strengths T T entropy 1, mix 12, gray-scale average T T 13 5, inertia.

The backlash law in turn the variable which rejects from the equation for gradation mean-square deviation T7, gradient mean value T6, gradient distribution nonuniform T3, small gradient superiority T1, entropy of mixing T12, gradation mean value T5, inertia T13.

Turn back law out of the equation for variables as grayscale average T6 T7, gradient, gradient distribution of variance is not homogeneity of T3, T1, small gradient advantages mixed entropy T12, T13 grayscale average T5, inertia.

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