简单的画图程序，可以画直线、贝塞尔曲线等、并进行相应的图形移动旋转等-simple drawing program, drawing straight lines, Bezier curves, and the corresponding movement of rotating graphics

一个简单的小程序，能够将显示输入图像进行灰度化、二值化、提取图像边缘并加以画图显示，还能显示图像的灰度直方图。-A simple little program that can be displayed input image graying, binarization, edge extraction and display to draw, but also display the histogram of the image.