在菜单中添加图像菜单，实现其子菜单功能，点击显示，在客户区绘制一幅图片，删除，图片消失。对应的两个自己画的对号，错号两个图标，也能实现相应功能-Add Image menu in the menu, to achieve its sub-menu function, click on show in the client area to draw a picture, delete, images disappear. Painted by the two corresponding check

MFC实现灰度图像的各种点运算，如图像反色，窗口变换，线性变换，阈值变换，灰度均衡等-MFC to achieve a variety of gray-scale image point operations, such as anti-color images, the window transform, linear transformation, threshold transform, gray balance, etc.

在MFC的环境下实现一个DCT变换，将LENA图读入到并显示，之后设置DCT参数，点击转换，再显示出来的就是做过DCT变换以及逆变换之后显示的lena图。运行时候需要做修改：将DCTBMPView.cpp第127行图像读入路径修改一下，再运行。-In the MFC environment to achieve a DCT, LENA figure will read into and displayed, and then set the DCT parameters, click Conve