自己编写的MyResize()函数，相当于imresize()函数，支持nearest和bilinear两种方式，用法格式为MyRize(I,scale,method)，I为要处理的图像矩阵，scale为系数，method为上述两种方式-Write your own MyResize () function, which is equivalent imresize () function, the nearest and bilinear in two ways, use format MyRize (I, scale, method), I is the matrix of images to be processed, scale factor of, method for the two ways