c# & Halcon 实现通过相机图像采集及处理

【核心代码】

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using HalconDotNet;

namespace showpicture
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        HObject ho_image, ho_GrayImage, ho_regions;



        HTuple hv_WindowHandle = null, hv_Height, hv_Width;
        HTuple hv_AcqHandle = null;

        private void button1_Click(object sender, EventArgs e)
        {
            string imagePath;
            openFileDialog1.Filter = "JEPG文件|*.jpg*|BMP文件|*.bmp*";
            openFileDialog1.RestoreDirectory = true;
            HOperatorSet.GenEmptyObj(out ho_image);
            HOperatorSet.GenEmptyObj(out ho_GrayImage);
            HOperatorSet.GenEmptyObj(out ho_regions);
            ho_image.Dispose();
            if (openFileDialog1.ShowDialog() == DialogResult.OK) ;
            imagePath = openFileDialog1.FileName;
            HOperatorSet.ReadImage(out ho_image, imagePath);

        }







        private void button2_Click(object sender, EventArgs e)
        {

            HOperatorSet.OpenWindow(0, 0, hWindowControl1.Width, hWindowControl1.Height, hWindowControl1.HalconWindow, "", "", out hv_WindowHandle);
            HDevWindowStack.Push(hv_WindowHandle);
            ho_GrayImage.Dispose();
            HOperatorSet.Rgb1ToGray(ho_image, out ho_GrayImage);
            ho_regions.Dispose();
            HOperatorSet.Threshold(ho_GrayImage, out ho_regions, 103, 145);

            if (HDevWindowStack.IsOpen())
            {
                HOperatorSet.DispObj(ho_regions, HDevWindowStack.GetActive());
            }

        }

        private void button3_Click(object sender, EventArgs e)
        {
            
            HOperatorSet.GenEmptyObj(out ho_image);
            //Image Acquisition 01: Code generated by Image Acquisition 01
            HOperatorSet.OpenFramegrabber("DirectShow", 1, 1, 0, 0, 0, 0, "default", 8, "rgb",
         -1, "false", "default", "[0] USB 2.0 Camera", 0, -1, out hv_AcqHandle);
            HOperatorSet.GrabImageStart(hv_AcqHandle, -1);
        }
        private void button4_Click(object sender, EventArgs e)
        {
            timer1.Enabled = true;
            HOperatorSet.OpenWindow(0, 0, hWindowControl1.Width, hWindowControl1.Height, hWindowControl1.HalconWindow, "", "", out hv_WindowHandle);
            HDevWindowStack.Push(hv_WindowHandle);
            
        }
        private void button6_Click(object sender, EventArgs e)
        {
            timer1.Enabled = false;
            HOperatorSet.CloseFramegrabber(hv_AcqHandle);
            ho_image.Dispose();

            
        }

        private void button7_Click(object sender, EventArgs e)
        {
            HOperatorSet.CloseWindow(HDevWindowStack.Pop());
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            ho_image.Dispose();
            HOperatorSet.GrabImageAsync(out ho_image, hv_AcqHandle, -1);
            HOperatorSet.GetImageSize(ho_image, out hv_Width, out hv_Height);
            if (HDevWindowStack.IsOpen())
            {
                HOperatorSet.SetPart(HDevWindowStack.GetActive(), 0, 0, hv_Height, hv_Width);
            }
            if (HDevWindowStack.IsOpen())
            {
                HOperatorSet.DispObj(ho_image, HDevWindowStack.GetActive());
            }
        }
    }
}