The formula of structural porosity, pore contribution rate, and pore configuration are used in analysis of the digital images to achieve the distributions of pore size and pore shape.

• 构造孔隙度、孔隙贡献率和孔隙形状参数的计算公式用于数字图像分析，得到孔隙大小分布和孔隙形状分布。