WPF使用Halcon打开图片

1、新建WPF工程，在解决方案资源管理器中选中当前工程项目，鼠标右击，弹出右键菜单，移动鼠标点击【属性】，弹出属性界面，选择【生成】项，勾选中【允许不安全代码】

2、添加引用halcondotnet.dll，下载halcondotnet.dll、halcon.dll、halcondotnet.xml、halconxl.dll到生成目录下。并准备一张RGB图片，重命名为"1.jpeg"

3、在MainWindow.xaml页面中添加如下代码：

<Window x:Class="HalconTest.MainWindow"

 

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

 

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

 

        Title="MainWindow" Height="350 

    <Grid Name="mygrid">

 

       

 

    </Grid>

 

</Window>

4、在MainWindow.xaml.cs页面中添加如下代码：

using HalconDotNet;

 

using System;

 

using System.Collections.Generic;

 

using System.Linq;

 

using System.Runtime.InteropServices;

 

using System.Text;

 

using System.Threading.Tasks;

 

using System.Windows;

 

using System.Windows.Controls;

 

using System.Windows.Data;

 

using System.Windows.Documents;

 

using System.Windows.Input;

 

using System.Windows.Media;

 

using System.Windows.Media.Imaging;

 

using System.Windows.Navigation;

 

using System.Windows.Shapes;

namespace HalconTest

 

{

 

    /// <summary>

 

    /// MainWindow.xaml 的交互逻辑

 

    /// </summary>

 

    public partial class MainWindow : Window

 

    {

 

        public unsafe MainWindow()

 

        {

 

            InitializeComponent();

 

            HObject image;

 

            HOperatorSet.ReadImage(out image,  "1.jpeg");

            HImage h_image = new HImage();

 

            //HTuple pointer;

 

            HTuple t;

 

            HTuple w;

 

            HTuple h;

 

            HTuple pointerRed;

 

            HTuple pointerGreen;

 

            HTuple pointerBlue;

 

            HOperatorSet.GetImagePointer3(image, out pointerRed, out pointerGreen, out pointerBlue, out t, out w, out h);

 

            h_image.GenImage3(t, w, h, pointerRed, pointerGreen, pointerBlue);

 

            string t2;

 

            int w2;

 

            int h2;

 

            IntPtr pr, pg, pb;

 

            h_image.GetImagePointer3(out pr, out pg, out pb, out t2, out w2, out h2);

 

            int len = w * h;

 

            byte[] datar = new byte[len];

 

            byte[] datag = new byte[len];

 

            byte[] datab = new byte[len];

 

            Marshal.Copy(pr, datar, 0, len);

 

            Marshal.Copy(pg, datag, 0, len);

 

            Marshal.Copy(pb, datab, 0, len);

 

            h_image.Dispose();

 

            byte[] data = new byte[len * 3];

 

            fixed (byte* bp = data, bbp = datab, brp = datar, bgp = datag)

 

            {

 

                byte* b = bp;

 

                byte* bb = bbp;

 

                byte* bg = bgp;

 

                byte* br = brp;

 

                for (int i = 0; i < len; i++)

 

                {

 

                    *b = *bb; b++; bb++;

 

                    *b = *bg; b++; bg++;

 

                    *b = *br; b++; br++;

 

                }

 

            }

 

            WriteableBitmap wb = new WriteableBitmap(w, h, 96, 96, System.Windows.Media.PixelFormats.Bgr24, null);

 

            wb.WritePixels(new System.Windows.Int32Rect(0, 0, w, h), data, w * 3, 0);

 

            mygrid.Background = new System.Windows.Media.ImageBrush(wb);

 

        }

    }

 

}

5、编译代码，生成解决方案。编译成功后，按F5执行。出现图像画面。