使用OpenCV进行图像处理完成图像的旋转，适合中级学习者-Use OpenCV for image processing is complete image rotation, suitable for intermediate learners

利用OPENCV对灰度图像按一定角度进行旋转-In OPENCV， rotate the gray image using a certain angle

这是一个基于OpenCV的图形处理程序,可以对图像进行旋转和缩放,缩放的比例和可以在程序中修改-This is an OpenCV-based graphics program, image rotate and zoom, zoom ratio and can be modified in the program