生成变形前后高斯分布的散斑图像，可调节散斑尺寸、散斑数量等相关参数，并提供散斑质量的评价方法，用于DIC的模拟计算(The speckle image of Gauss distribution before and after deformation can be adjusted, speckle size, speckle number and other related parameters, and the speckle quality evaluation method is al