说明：  实现彩色图像的形态学特征指数计算和形态学梯度重建，包含两个函数MBI( filename,scaleMin,deltS,scaleNum,directNum)和MreconstructGrad(filename,SESize)。
(For color image morphological indices and morphological gradient reconstruction, MBI consists of two function (filename,scaleMin,deltS,scaleNum,directNum) and MreconstructGrad (filename,SESize).)