Ref: 1.
https://ponchi961.pixnet.net/blog/post/199057831
2.
https://github.com/emgucv/emgucv/blob/master/Emgu.CV.Example/CameraCapture/CameraCapture.cs
VS2017 @ Windows 10x64 : NET.Framework 4.6.1
//---xaml
<Window x:Class="wk1401.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:wk1401"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Grid>
<Image Name="imageBox1"/>
</Grid>
</Window>
//---xaml.cs
using System;
using System.Collections.Generic;
using System.Linq;
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 wk1401
{
// nuget add emgu.cv
// ref add System.ServiceModel 4.0
using Emgu.CV;
using Emgu.CV.CvEnum;
using Emgu.CV.Structure;
using Emgu.Util;
using System.Drawing;
using System.IO;
/// <summary>
/// MainWindow.xaml 的互動邏輯
/// </summary>
public partial class MainWindow : Window
{
private VideoCapture _capture = null;
private Mat _frame;
public MainWindow()
{
InitializeComponent();
this.Closing += MainWindow_Closing;
_capture = new VideoCapture();
_capture.ImageGrabbed += _capture_ImageGrabbed;
_frame = new Mat();
_capture.Start();
}
private void MainWindow_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
_capture.Dispose();
}
private void _capture_ImageGrabbed(object sender, EventArgs e)
{
if (_capture != null && _capture.Ptr != IntPtr.Zero)
{
_capture.Retrieve(_frame, 0);
this.Dispatcher.Invoke((Action)(() =>
{
// your code or function here.
// https://ponchi961.pixnet.net/blog/post/199057831
imageBox1.Source = ConvertBitmapToImageSource(_frame.Bitmap);
}));
}
}
private ImageSource ConvertBitmapToImageSource(Bitmap imToConvert)
{
Bitmap bmp = new Bitmap(imToConvert);
MemoryStream ms = new MemoryStream();
bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
BitmapImage image = new BitmapImage();
image.BeginInit();
ms.Seek(0, SeekOrigin.Begin);
image.StreamSource = ms;
image.EndInit();
ImageSource sc = (ImageSource)image;
return sc;
}
}
}
//---- webcam @ 3D
// Add helixtoolkit.wpf.dll
//-- xaml
<Window x:Class="wk1401.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:wk1401"
xmlns:h="http://helix-toolkit.org/wpf"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Grid>
<h:HelixViewport3D>
<h:DefaultLights/>
<ModelVisual3D>
<ModelVisual3D.Content>
<Model3DGroup >
<Model3DGroup.Children>
<DirectionalLight Color="#FFFFFFFF" Direction="3,-4,5" />
<GeometryModel3D>
<GeometryModel3D.Geometry>
<MeshGeometry3D
Positions="-1 -1 0 1 -1 0 -1 1 0 1 1 0"
Normals="0 0 1 0 0 1 0 0 1 0 0 1"
TextureCoordinates="0 1 1 1 0 0 1 0 "
TriangleIndices="0 1 2 1 3 2" />
</GeometryModel3D.Geometry>
<GeometryModel3D.Material>
<DiffuseMaterial>
<DiffuseMaterial.Brush>
<ImageBrush x:Name="imageBox1"/>
</DiffuseMaterial.Brush>
</DiffuseMaterial>
</GeometryModel3D.Material>
</GeometryModel3D>
</Model3DGroup.Children>
</Model3DGroup>
</ModelVisual3D.Content>
</ModelVisual3D>
</h:HelixViewport3D>
<!--<Image Name="imageBox1"/>-->
</Grid>
</Window>
//--- xaml.cs
using System;
using System.Collections.Generic;
using System.Linq;
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 wk1401
{
// nuget add emgu.cv
// ref add System.ServiceModel 4.0
using Emgu.CV;
using Emgu.CV.CvEnum;
using Emgu.CV.Structure;
using Emgu.Util;
using System.Drawing;
using System.IO;
/// <summary>
/// MainWindow.xaml 的互動邏輯
/// </summary>
public partial class MainWindow : Window
{
private VideoCapture _capture = null;
private Mat _frame;
public MainWindow()
{
InitializeComponent();
this.Closing += MainWindow_Closing;
_capture = new VideoCapture();
_capture.ImageGrabbed += _capture_ImageGrabbed;
_frame = new Mat();
_capture.Start();
}
private void MainWindow_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
_capture.Dispose();
}
private void _capture_ImageGrabbed(object sender, EventArgs e)
{
if (_capture != null && _capture.Ptr != IntPtr.Zero)
{
_capture.Retrieve(_frame, 0);
this.Dispatcher.Invoke((Action)(() =>
{
// your code or function here.
// https://ponchi961.pixnet.net/blog/post/199057831
//imageBox1.Source = ConvertBitmapToImageSource(_frame.Bitmap);
imageBox1
.ImageSource = ConvertBitmapToImageSource(_frame.Bitmap);
}));
}
}
private ImageSource ConvertBitmapToImageSource(Bitmap imToConvert)
{
Bitmap bmp = new Bitmap(imToConvert);
MemoryStream ms = new MemoryStream();
bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
BitmapImage image = new BitmapImage();
image.BeginInit();
ms.Seek(0, SeekOrigin.Begin);
image.StreamSource = ms;
image.EndInit();
ImageSource sc = (ImageSource)image;
return sc;
}
}
}
