weighted average method of index 指标加权平均法
Based on the shortcoming of the method of average pollution index assessment, this paper put forward the method of active pollution index to assess the environment of polluted river water.
针对水环境质量的均值污染指数评价方法的缺点，提出了利用活性污染指数法来评价微污染水体环境。
The indexes are assigned by expert experience method and average assignment method, and it is got the weight table of evaluation index.
通过专家经验法和平均赋值法对指标进行赋值，得到评价指标权重表。
The experiment results show that the method can improve the average gradient and preserve spectrum index commendably.
实验表明算法有效提高了图像的清晰度和保持了光谱特性。
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