说明：  针对黄瓜叶部病害病斑区域的表面颜色、纹理、形状自身的特点，构造了合适的描述特征 参数，并对参数在黄瓜叶部病害病斑区域间的分布做了定量分析
(Construct a suitable description of the characteristic parameters, cucumber the leaf diseases lesion area surface color, texture, shape, and distribution of the parameters in the the cucumber leaf diseases lesion area between quantitative analysis)