halcon与C#混合编程（二）读取并处理图片

示例：读取并处理图片

halcon源码：

*读取图片
read_image(Image,'D:/MyFile/C#/HalconCsExample/示例图片.jpg')
get_image_size(Image,Width,Height)

*图像处理
rgb1_to_gray(Image,GrayImage)

导出的代码（ImagePro）：

//
//  File generated by HDevelop for HALCON/DOTNET (C#) Version 10.0
//
//  This file is intended to be used with the HDevelopTemplate or
//  HDevelopTemplateWPF projects located under %HALCONEXAMPLES%\c#

using System;
using HalconDotNet;

public partial class HDevelopExport
{
  public HTuple hv_ExpDefaultWinHandle;

  // Main procedure
  private void action()
  {

    // Local iconic variables

    HObject ho_Image, ho_GrayImage;


    // Local control variables

    HTuple hv_Width, hv_Height;

    // Initialize local and output iconic variables
    HOperatorSet.GenEmptyObj(out ho_Image);
    HOperatorSet.GenEmptyObj(out ho_GrayImage);

    //读取图片
    //dev_close_window(...);
    ho_Image.Dispose();
    HOperatorSet.ReadImage(out ho_Image, "D:/MyFile/C#/HalconCsExample/示例图片.jpg");
    HOperatorSet.GetImageSize(ho_Image, out hv_Width, out hv_Height);
    //dev_open_window(...);
    HOperatorSet.DispObj(ho_Image, hv_ExpDefaultWinHandle);

    //图像处理
    ho_GrayImage.Dispose();
    HOperatorSet.Rgb1ToGray(ho_Image, out ho_GrayImage);
    HOperatorSet.DispObj(ho_GrayImage, hv_ExpDefaultWinHandle);

    ho_Image.Dispose();
    ho_GrayImage.Dispose();

  }

  public void InitHalcon()
  {
    // Default settings used in HDevelop
    HOperatorSet.SetSystem("do_low_error", "false");
  }

  public void RunHalcon(HTuple Window)
  {
    hv_ExpDefaultWinHandle = Window;
    action();
  }

}

C#工程：

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; //添加引用

namespace HalconCsExample
{
    public partial class Form1 : Form
    {
        //增加代码：
        HDevelopExport HD = new HDevelopExport();
        string ImagePath;

        public Form1()
        {
            InitializeComponent();
            this.btnImagePro.Enabled = false;
        }

        private void btnReadImage_Click(object sender, EventArgs e)
        {
            openFileDialog1.Filter = "JPEG文件|*.jpg*|BMP文件|*.bmp*|TIFF文件|*.tiff*";
            openFileDialog1.RestoreDirectory = true;
            openFileDialog1.FilterIndex = 1;
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                ImagePath = openFileDialog1.FileName;
                HD.ReadImage(hWindowControl1.HalconWindow, ImagePath);
                this.btnImagePro.Enabled = true;
            }
        }

        private void btnImagePro_Click(object sender, EventArgs e)
        {
            HD.ImagePro();
            this.btnImagePro.Enabled = false;
        }
    }

    //从导出的ReadImage.cs中拷贝HDevelopExport类到命名空间 HalconCsExample
    public partial class HDevelopExport
    {
        public HTuple hv_ExpDefaultWinHandle;
        // Local iconic variables
        HObject ho_Image, ho_GrayImage;


        public void InitHalcon()
        {
            // Default settings used in HDevelop
            HOperatorSet.SetSystem("do_low_error", "false");
        }

        public void ReadImage(HTuple Window,string path)
        {
            hv_ExpDefaultWinHandle = Window;

            // Initialize local and output iconic variables
            HOperatorSet.GenEmptyObj(out ho_Image);
            HOperatorSet.GenEmptyObj(out ho_GrayImage);

            //读取图片
            //dev_close_window(...);
            ho_Image.Dispose();
            HOperatorSet.ReadImage(out ho_Image, path);

            //dev_open_window(...);
            HOperatorSet.DispObj(ho_Image, hv_ExpDefaultWinHandle);
        }

        public void ImagePro()
        {
            //图像处理
            ho_GrayImage.Dispose();
            HOperatorSet.Rgb1ToGray(ho_Image, out ho_GrayImage);
            HOperatorSet.DispObj(ho_GrayImage, hv_ExpDefaultWinHandle);

            ho_Image.Dispose();
            ho_GrayImage.Dispose();

        }

    }
}

运行结果：

单击读取图片按钮并选取图片：

点击图像处理按钮：