该源码实现了对一256色灰度图像的霍夫曼编码输出，并用MFC实现了界面化处理-Realized the source of a 256-color gray-scale image of the Huffman code output, and the realization of the interface with MFC treatment

学习图像处理的经典例子，MFC + VC++ 编程-classic examples for studying digital image processing, source code programming in MFC and VC++