假如我们要编写一个称为fgprod的函数，该函数的功能是将两幅图像相乘，并输出图像的乘积、乘积的最大值与最小值以及一幅归一化的乘积图像。-If we are to prepare a group called the fgprod function, which function is to multiply two images and output images of the product, the product of the maximum and minimum values, as