将一张图片切割成任意大小的小图片,经测试数据正确无误,Photos will be cut into any size small pictures, by the test data is correct

这是一种简单的互相关图像匹配算法，已经在matlab环境下测试过，效果很好。附带两张匹配图片-This is a simple cross-correlation image matching algorithm has been tested in the matlab environment, the effect is very good. With two matching pictures

MNIST数据集是机器学习领域中非常经典的一个数据集，由60000个训练样本和10000个测试样本组成，每个样本都是一张28 * 28像素的灰度手写数字图片。(The MNIST data set is a very classic data set in the field of machine learning. It consists of 60,000 training samples and 10,000 test samples. Each sample is a 28 * 28 p