Leap Motion 用EmguCV 顯示圖像並對齊手指

原創

2020-02-20 15:52

使用的爲控制檯應用程序。主要的代碼都在重寫的Listener類裏，代碼如下。
中間需要對座標轉換下。
我只顯示了左邊的那副圖。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Leap;
using Emgu.CV;
using System.Drawing;
using Emgu.CV.Structure;
using Emgu.Util;
using System.Drawing.Imaging;

namespace ConsoleApplication14
{
    class asas : Listener
    {
        Object thislock = new Object();
        Image<Gray, byte> left = new Image<Gray, byte>(640, 240);
        void safewriteline(string line)
        {
            lock (thislock)
            {
                Console.WriteLine(line);
            }
        }
        public override void OnConnect(Controller arg0)
        {
            safewriteline("Conectted");
        }
        public override void OnFrame(Controller arg0)
        {
            Frame frame = arg0.Frame();
            ImageList images = frame.Images;
            //HandList hands = frame.Hands;
            FingerList fingers = frame.Fingers;

            Image<Gray, byte> left = new Image<Gray, byte>(640,240);
            left.Bytes = images[0].Data;
            foreach(var f1 in fingers)
            {
                Leap.Vector tip = f1.TipPosition;
                float h_slope = -(tip.x + 20 * (-1)) / tip.y;
                float v_slope = tip.z / tip.y;

                Leap.Vector pixel = images[0].Warp(new Leap.Vector(h_slope, v_slope, 0));
                CvInvoke.Circle(left, new Point((int)pixel.x, (int)pixel.y), (int)(1/tip.y*1000), new MCvScalar(255), (int)(1/tip.y*1000)*2);
            }
            CvInvoke.Imshow("asasa",left);
            CvInvoke.WaitKey(2);
        }
        public override void OnInit(Controller arg0)
        {
            safewriteline("inti");
        }

    }
}

然後這個是主函數的代碼

namespace ConsoleApplication14
{
    class MyApplication
    {

        static void Main(string[] args)
        {
            Controller leap = new Controller();
            leap.AddListener(new asas());
            leap.SetPolicy(Controller.PolicyFlag.POLICY_IMAGES);
            Console.ReadKey();
        }
    }
}