OpenCVの灰度变换

MainWindow.xaml

<Window x:Class="Splash.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="OpenCVの灰度变换" SizeToContent="WidthAndHeight" ResizeMode="NoResize" WindowStartupLocation="CenterScreen" Icon="OpenCV.ico">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>

        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto"/>
            <ColumnDefinition Width="Auto"/>
        </Grid.ColumnDefinitions>

        <Button Grid.Row="0" Grid.Column="0" Margin="4" Padding="16,4" Content="选择图像…" Name="ButtonSelect" Click="ButtonSelect_Click"/>
        
        <Label Grid.Row="1" Grid.Column="0" Margin="4" Background="LightGreen" Content="源图像" HorizontalContentAlignment="Center"/>
        <Label Grid.Row="1" Grid.Column="1" Margin="4" Background="LightGreen" Content="灰度图像" HorizontalContentAlignment="Center"/>

        <Border Grid.Row="2" Grid.Column="0" Margin="4" BorderBrush="Green" BorderThickness="1">
            <Image Width="240" Height="320" Name="ImageRaw"/>
        </Border>

        <Border Grid.Row="2" Grid.Column="1" Margin="4" BorderBrush="Green" BorderThickness="1">
            <Image Width="240" Height="320" Name="ImageTarget"/>
        </Border>           
    </Grid>
</Window>

MainWindow.xaml.cs

/* ----------------------------------------------------------
* 文件名称：MainWindow.xaml.cs
*
* 作者：秦建辉
*
* 微信：splashcn
*
* 博客：http://www.firstsolver.com/wordpress/
*
* 开发环境：
*      Visual Studio V2017
*      .NET Framework 4.7.2
*      OpenCvSharp 4.0.30319
*
* 版本历史：
*		V1.0    2018年12月27日
*				OpenCVの灰度变换
* ---------------------------------------------------------- */
using Com.FirstSolver.Splash;
using OpenCvSharp.Extensions;
using System.IO;
using System.Windows;
using System.Windows.Media.Imaging;

namespace Splash
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void ButtonSelect_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog
                {
                    Filter = "Image|*.jpg;*.bmp;*.png;*.tif;*.tga;*.ras;*.jp2;*.j2k;*.jpe",
                    DereferenceLinks = true
                };

                this.CenterChild();
                if (dlg.ShowDialog(Owner).Value == true)
                {
                    using (FileStream fs = new FileStream(dlg.FileName, FileMode.Open, FileAccess.Read, FileShare.Read))
                    {   // 读取图像内容
                        byte[] data = new byte[fs.Length];
                        fs.Read(data, 0, (int)fs.Length);

                        // 显示源图像
                        BitmapImage bi = new BitmapImage();
                        bi.BeginInit();
                        bi.StreamSource = new MemoryStream(data);
                        bi.EndInit();
                        ImageRaw.Source = bi;

                        // 显示灰度图像
                        OpenCvSharp.Mat GrayMat = OpenCvSharp.Cv2.ImDecode(data, OpenCvSharp.ImreadModes.Grayscale);
                        ImageTarget.Source = GrayMat.ToBitmapSource();
                    }
                }
            }
            catch (System.Exception exception)
            {
                MessageBoxPlus.Show(this, exception.Message, "图像文件异常", MessageBoxButton.OK, MessageBoxImage.Error);
            }
        }
    }
}

运行结果