opencvsharp中resize圖像

 和c++中還是有些區別的，c#中需要new圖像，還有就是在設置size時，也要new一下。

using OpenCvSharp;
using OpenCvSharp.Extensions;

Mat resize_image = new Mat();
Cv2.Resize(srcImg, resize_image, new OpenCvSharp.Size(), 0.5, 0.5, InterpolationFlags.Linear);
//Cv2.ImShow("output", resize_image);
//如果用到的是winform，還可以用picturebox顯示
Bitmap bitmap = BitmapConverter.ToBitmap(resize_image);
pictureBox1.Image = bitmap;