WPFMediaKit照相功能

最近写的一个WPF照相功能，往各位吐槽，提供优化

在WPF 设计器中添加如下代码

xmlns:wpfmedia="clr-namespace:WPFMediaKit.DirectShow.Controls;assembly=WPFMediaKit"

添加显示摄像头图像控件

<wpfmedia:VideoCaptureElement DockPanel.Dock="Top" Name="captureElement" Margin="0,33,0,37"/>

在cs代码文档中添加如下代码

在引用程序集中添加WPFMediaKit程序集

引用类名空间，添加如下代码

using WPFMediaKit;

using WPFMediaKit.DirectShow.Controls;

加载摄像头

void MainWindow_Loaded(object sender, RoutedEventArgs e)

        {

            //加载摄像头

            cmbCameras.ItemsSource = MultimediaUtil.VideoInputNames;

            if (MultimediaUtil.VideoInputNames.Length > )

            {

                cmbCameras.SelectedIndex = ;

            }

            else

            {

                MessageBox.Show("没有可用摄像头！");

                BtnCap.IsEnabled = false;

                BtnOk.IsEnabled = false;

                BtnNew.IsEnabled = false;

            }

        }

拍照

 private void BtnCap_Click(object sender, RoutedEventArgs e)

        {

            //captureElement. 怎么抓取高清的原始图像

            RenderTargetBitmap bmp = new RenderTargetBitmap((int)captureElement.ActualWidth, (int)captureElement.ActualHeight,

                , , PixelFormats.Default);

            bmp.Render(captureElement);

            BitmapEncoder encoder = new JpegBitmapEncoder();

            encoder.Frames.Add(BitmapFrame.Create(bmp));

            using (MemoryStream ms = new MemoryStream())

            {

                encoder.Save(ms);

                CaptureData = ms.ToArray();//将拍照的图像转化为二进制数组

            }

        }

确定拍照

 private void BtnOk_Click(object sender, RoutedEventArgs e)

        {

            if (CaptureData != null)

            {

                DialogResult = true;

            }

            else

            {

                MessageBox.Show("未拍照图像");

                return;

            }

        }

重拍

private void BtnNew_Click(object sender, RoutedEventArgs e)

        {

            captureElement.Play();

        }

摄像头切换

private void cmbCameras_SelectionChanged(object sender, SelectionChangedEventArgs e)

        {

            captureElement.VideoCaptureSource = (string)cmbCameras.SelectedItem;

        }

将二进制转化成png

private BitmapImage ShowImage(byte[] imgbytes)

        {

            MemoryStream stream = new MemoryStream(imgbytes);

            BitmapImage bmpImg = new BitmapImage();

            bmpImg.BeginInit();

            bmpImg.StreamSource = stream;

            bmpImg.EndInit();

            return bmpImg;

        }

图片

巴特西

WPFMediaKit照相功能

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