【实例简介】c# & Halcon 实现通过相机图像采集及处理

【实例截图】

【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());

}

}

}

}