引用 Aforge
Aforge 介绍:http://baike.baidu.com/link?url=T3XRoneXNTVU8Hoh2tNOtiBYXCPBYmslpVUWWPw4c2pxyclFtmMgAlTNlBhLiXoLN_GamxUpiI3x-UBAErSUNa
获得摄像设备
public class FaceCommon { #region 方法 /// <summary> /// 获取已插USB摄像头硬件Id /// </summary> /// <returns></returns> public static List<string> GetCameraDeviceId() { List<string> _cameraList = new List<string>(); FilterInfoCollection _filterInfoCollection = new FilterInfoCollection(FilterCategory.VideoInputDevice);// 过滤信息 获取所有已插USB摄像头驱动信息 if (_filterInfoCollection != null && _filterInfoCollection.Count > 0) { for (int i = 0; i < _filterInfoCollection.Count; i++) { _cameraList.Add(_filterInfoCollection[i].MonikerString); //向集合中添加USB摄像头硬件Id } _cameraList.Remove(""); //移出空项 return _cameraList; } else { return null; } } #endregion }
/// <summary> /// 开始播放 /// </summary> private void StartCamera() { if (_videoCaptureDevice != null) { _videoCaptureDevice.Start(); } } /// <summary> /// 停止播放 /// </summary> private void StopCamera() { if (_videoCaptureDevice != null) { _videoCaptureDevice.SignalToStop(); } } /// <summary> /// 初始化摄像头 /// </summary> private void InitialCamera() { if (this.comboBox1.SelectedItem != null) { _videoCaptureDevice = new VideoCaptureDevice(this.comboBox1.SelectedItem.ToString()); _videoCaptureDevice.NewFrame += HandNewFrame; } } private void HandNewFrame(object sender, NewFrameEventArgs args) { try { this.Invoke(new Action(() => //拉姆达表达式 =〉后面跟着函数体 { if (args != null) { this.pictureBox1.Image = args.Frame.Clone() as Image; imgobj = args.Frame.Clone() as Image; } })); } catch (Exception) { //throw; } }
开始摄像:
private void button1_Click(object sender, EventArgs e) { InitialCamera(); StartCamera(); }
拍照并将图片保存:
StopCamera(); pictureBox1.BackgroundImage = imgobj; if (pictureBox1.BackgroundImage != null) { Bitmap bmp = new Bitmap(pictureBox1.BackgroundImage); if (sm.textBox1.Text== String.Empty) { MessageBox.Show("请先完善人员的基本信息", "警告"); } else { String number = sm.textBox1.Text.Trim(); String dir = System.Environment.CurrentDirectory + "\\Images\\" + number + ".bmp"; if (File.Exists(@dir)) { File.Delete(@dir); bmp.Save("Images//" + number + ".bmp"); bmp.Dispose(); //记得释放 不然会提醒文件被另一进程使用。 } else { bmp.Save("Images//" + number + ".bmp"); bmp.Dispose(); } if (File.Exists(@dir)) { sm.pictureBox1.Image = Image.FromFile(dir); sm.pictureBox1.ImageLocation = @dir; } else { // } } }
界面截图: