OpenCvSharp 图像旋转

/// <summary>
        /// 图像旋转
        /// </summary>
        private Mat MatRotate(Mat src, float angle)
        {
            Mat dst = new Mat();
            Point2f center = new Point2f(src.Cols / , src.Rows / );
            Mat rot = Cv2.GetRotationMatrix2D(center, angle, );
            Size2f s2f = new Size2f(src.Size().Width, src.Size().Height);
            Rect box = new RotatedRect(new Point2f(, ), s2f, angle).BoundingRect();
            double xx = rot.At<double>(, ) + box.Width /  - src.Cols / ;
            double zz = rot.At<double>(, ) + box.Height /  - src.Rows / ;
            rot.Set(, , xx);
            rot.Set(, , zz);
            Cv2.WarpAffine(src, dst, rot, box.Size);
            return dst;
        }

OpenCvSharp 图像旋转；

参考地址：https://blog.csdn.net/hansLin_918/article/details/91358328