在图形的多有点中，连线实现画出所有点的外界凸边形，开发工具Opencv+VC-In the multi-bit graphics, the connection to achieve all the points drawn outside convex polygon, development tools Opencv+ VC++

基于OPENCV的图形显示，在MFC的多画框中显示图片-show image

基于opencv实现对投影图形的梯形转换，可以读取保存了坐标的txt文件，并且进行多幅图片的不同尺度的梯形变换-Opencv achieve the projected figure based on trapezoidal changes that can save the coordinates read txt file. Can transform a set of pictures of the trapezoid