[人工智能]OpenCVSharp 背景消除

用?OpenCVSharp 4.5?跑一遍?OpenCV?官方教程。

原?OpenCV?官方教程链接：OpenCV: How to Use Background Subtraction Methods

using System;
using OpenCvSharp; 
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class tutorial61:ITutorial
    {
        public void Run()
        {
            string videoFile = @"I:\csharp\videos\vtest.avi";
            BackgroundSubtractorMOG pBackSub = BackgroundSubtractorMOG.Create();
            //BackgroundSubtractorKNN pbAckSub_knn = BackgroundSubtractorKNN.Create();

            VideoCapture capture = new VideoCapture(videoFile);
            Mat frame = new Mat();
            Mat fgMask = new Mat();
            while(true)
            {
                capture.Read(frame);
                if (frame.Empty())
                    break;
                pBackSub.Apply(frame, fgMask);
                Cv2.Rectangle(frame, new Point(10, 2), new Point(100, 20), Scalar.White, -1);
                double ss = capture.Get(VideoCaptureProperties.PosFrames);
                Cv2.PutText(frame, ss.ToString(), new Point(15, 15), HersheyFonts.HersheySimplex, 0.5, Scalar.Black);
                Cv2.ImShow("Frame", frame);
                Cv2.ImShow("FG Mask", fgMask);
                int key = Cv2.WaitKey(30);
                if (key == 'q' || key == 27)
                    break;
            }
        }
    }
}

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