■ 얼굴 인식을 사용해 마우스를 제어하는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.Drawing; using System.Runtime.InteropServices; using System.Windows.Forms; using Emgu.CV; using Emgu.CV.Structure; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Import ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 커서 위치 구하기 - GetCursorPos(point) /// <summary> /// 커서 위치 구하기 /// </summary> /// <param name="point">위치</param> /// <returns>처리 결과</returns> [DllImport("user32.dll")] private static extern bool GetCursorPos(out Point point); #endregion #region 커서 위치 설정하기 - SetCursorPos(x, y) /// <summary> /// 커서 위치 설정하기 /// </summary> /// <param name="x">X 좌표</param> /// <param name="y">Y 좌표</param> /// <returns>처리 결과</returns> [DllImport("user32.dll")] private static extern bool SetCursorPos(int x, int y); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 캡처 /// </summary> private Capture capture; /// <summary> /// 분류기 /// </summary> private CascadeClassifier classifier; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.classifier = new CascadeClassifier("haarcascade_frontalface_alt2.xml"); if(this.capture == null) { try { this.capture = new Capture(); } catch(Exception exception) { MessageBox.Show(exception.Message); return; } } Application.Idle += Application_Idle; FormClosed += Form_FormClosed; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 애플리케이션 휴지시 처리하기 - Application_Idle(sender, e) /// <summary> /// 애플리케이션 휴지시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Application_Idle(object sender, EventArgs e) { Image<Bgr, Byte> captureImage = this.capture.QueryFrame(); Image<Gray, Byte> grayscaleImage = captureImage.Convert<Gray, Byte>(); grayscaleImage._EqualizeHist(); Rectangle imageRectangle = grayscaleImage.ROI; Rectangle mouseStableRectangle = new Rectangle ( (int)(imageRectangle.Width * 0.4), (int)(imageRectangle.Height * 0.4), (int)(imageRectangle.Width * 0.2), (int)(imageRectangle.Height * 0.2) ); captureImage.Draw(mouseStableRectangle, new Bgr(255, 0, 0), 1); Rectangle[] faceRectangleArray = this.classifier.DetectMultiScale ( grayscaleImage, 1.1, 10, new Size(20, 20), Size.Empty ); if(faceRectangleArray.Length > 0) { Rectangle maximumFaceRectangle = faceRectangleArray[0]; for(int i = 1; i < faceRectangleArray.Length; i++) { if(faceRectangleArray[i].Width * faceRectangleArray[i].Height > maximumFaceRectangle.Width * maximumFaceRectangle.Height) { maximumFaceRectangle = faceRectangleArray[i]; } } captureImage.Draw(maximumFaceRectangle, new Bgr(255, 255, 0.0), 1); Point maximumFaceRectangleCenter = new Point ( maximumFaceRectangle.X + maximumFaceRectangle.Width / 2, maximumFaceRectangle.Y + maximumFaceRectangle.Height / 2 ); Point imageRectangleCenter = new Point ( imageRectangle.X + imageRectangle.Width / 2, imageRectangle.Y + imageRectangle.Height / 2 ); captureImage.Draw ( new Cross2DF(maximumFaceRectangleCenter, maximumFaceRectangle.Width * 0.1f, maximumFaceRectangle.Height * 0.1f), new Bgr(0, 255, 0), 1 ); if(!mouseStableRectangle.Contains(maximumFaceRectangleCenter)) { double horizontalFraction = (double)(maximumFaceRectangleCenter.X - imageRectangleCenter.X) / imageRectangle.Width; double verticalFraction = (double)(maximumFaceRectangleCenter.Y - imageRectangleCenter.Y) / imageRectangle.Height; Rectangle primaryScreenRectangle = Screen.PrimaryScreen.Bounds; int maximumMouseSpeed = primaryScreenRectangle.Width / 20; Point mousePoint; GetCursorPos(out mousePoint); mousePoint.X = Math.Min(Math.Max(0, mousePoint.X + (int)((maximumMouseSpeed / 2) * horizontalFraction)), primaryScreenRectangle.Width ); mousePoint.Y = Math.Min(Math.Max(0, mousePoint.Y + (int)((maximumMouseSpeed / 2) * verticalFraction )), primaryScreenRectangle.Height); SetCursorPos(mousePoint.X, mousePoint.Y); } } this.imageBox.Image = captureImage; } #endregion #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 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 } } |
