说明：  本实验是一个采用基于像素复制的方式来进行图像缩放的程序，它分别由两个小程序组成，图像缩小和图像放大，程序的输入为一个图像矩阵和缩放因子（为整数）。图像的缩放是对图像进行的一种几何变换，通过对图像对应矩阵得操作来实现对图像大小的改变。像素复制方法的图像缩放的原理主要是对原来输入图像的整行或是整列像素进行简单的复制与删除，达到改变图像的大小的目的，
(Used in this experiment is a pixel-based approach to copy image scaling procedures, which were composed by the two small programs, images shrink and enlarge images, the program input for an image matrix and scaling factor (an integer). Image scaling is a geometric image transformation, through the image corresponds to a matrix operation to achieve a change of image size. Pixel of the image scaling method to copy the principle is the original input image of the entire line out or the entire pixel simple copy and delete, to change the image size of the purpose of)