■ 카메라 영상을 캡처하는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.Windows.Forms; using Emgu.CV; using Emgu.CV.Structure; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 캡처 /// </summary> private Capture capture = null; /// <summary> /// 캡처 여부 /// </summary> private bool isCapturing; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); try { this.capture = new Capture(); this.capture.ImageGrabbed += capture_ImageGrabbed; } catch(Exception exception) { MessageBox.Show(exception.Message); } FormClosed += Form_FormClosed; this.captureButton.Click += captureButtonClick; this.flipHorizontalButton.Click += flipHorizontalButton_Click; this.flipVerticalButton.Click += flipVerticalButton_Click; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 폼 닫는 경우 처리하기 - Form_FormClosed(sender, e) /// <summary> /// 폼 닫는 경우 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_FormClosed(object sender, FormClosedEventArgs e) { if(this.capture != null) { this.capture.Dispose(); } } #endregion #region 캡처 이미지 GRAB 처리하기 - capture_ImageGrabbed(sender, e) /// <summary> /// 캡처 이미지 GRAB 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void capture_ImageGrabbed(object sender, EventArgs e) { Image<Bgr, Byte> captureImage = this.capture.RetrieveBgrFrame(); Image<Gray, Byte> grayscaleImage = captureImage.Convert<Gray, Byte>(); Image<Gray, Byte> downSampleGrayscaleImage = grayscaleImage.PyrDown(); Image<Gray, Byte> upSampleGrayscaleImage = downSampleGrayscaleImage.PyrUp(); Image<Gray, Byte> cannyImage = upSampleGrayscaleImage.Canny(100, 60); this.captureImageBox.Image = captureImage; this.grayscaleImageBox.Image = grayscaleImage; this.GrayscaleSmoothingImageBox.Image = upSampleGrayscaleImage; this.cannyImageBox.Image = cannyImage; } #endregion #region 캡처 버튼 클릭시 처리하기 - captureButtonClick(sender, e) /// <summary> /// 캡처 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void captureButtonClick(object sender, EventArgs e) { if(this.capture != null) { if(this.isCapturing) { this.captureButton.Text = "캡처 시작"; this.capture.Pause(); } else { this.captureButton.Text = "캡처 중단"; this.capture.Start(); } this.isCapturing = !this.isCapturing; } } #endregion #region 수평 반전 버튼 클릭시 처리하기 - flipHorizontalButton_Click(sender, e) /// <summary> /// 수평 반전 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void flipHorizontalButton_Click(object sender, EventArgs e) { if(this.capture != null) { this.capture.FlipHorizontal = !this.capture.FlipHorizontal; } } #endregion #region 수직 반전 버튼 클릭시 처리하기 - flipVerticalButton_Click(sender, e) /// <summary> /// 수직 반전 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void flipVerticalButton_Click(object sender, EventArgs e) { if(this.capture != null) { this.capture.FlipVertical = !this.capture.FlipVertical; } } #endregion } } |
