程序中实现了数字图像里面的一些功能，从最简单的打开位图到hough变换，高斯变换，中值滤波等，对于学习数字图像的同学推介-Program to achieve some of the features inside the digital image, from the simplest to the hough transform to open bitmap, Gauss transformation, filtering, etc., for students to learn digit