说明：  开发本程序代码的目的是给学习数字图像处理课程的研究生提供一个开始练习的程序框架，学员在此基础上可以免去位图读取与显示方面的编程工作，而将时间用在算法实现上。
(Development of the program code is designed to learn digital image processing to provide a post-graduate courses began to practice the procedures for the framework, the participants on this basis can be removed from the bitmap to read and display the programming work, and the time used in algorithm on.)