使用OpenCVSharp查找带有C#的边界框？

using OpenCvSharp;

class Program
{
    static void Main()
    {
        // 加载图像
        Mat image = Cv2.ImRead("image.jpg", ImreadModes.Color);

        // 灰度化处理
        Mat grayImage = new Mat();
        Cv2.CvtColor(image, grayImage, ColorConversionCodes.BGR2GRAY);

        // 边界框检测
        Point[][] contours;
        HierarchyIndex[] hierarchy;
        Cv2.FindContours(grayImage, out contours, out hierarchy, RetrievalModes.External, ContourApproximationModes.ApproxSimple);

        // 绘制边界框
        Scalar color = new Scalar(0, 255, 0);
        int thickness = 2;
        for (int i = 0; i < contours.Length; i++)
        {
            Rect boundingRect = Cv2.BoundingRect(contours[i]);
            Cv2.Rectangle(image, boundingRect, color, thickness);
        }

        // 显示结果
        Cv2.ImShow("Result", image);
        Cv2.WaitKey(0);
    }
}