gistfile2.txt

JJUG CCC カメラキャプチャと顔認識

/**
 * (./) FaceDetection.java, 03/05/08
 * (by) cousot stephane @ http://www.ubaa.net/
 * (cc) some right reserved
 *
 * Sample program for "OpenCV" project.
 * Use ESC key to close the program properly.
 *
 * This sample is released under a Creative Commons Attribution 3.0 License
 * 腦駈醜 http://creativecommons.org/licenses/by/3.0/ 腦駈什
 */



import java.awt.*;
import java.awt.event.*;
import java.awt.image.MemoryImageSource;
import hypermedia.video.OpenCV;




public class FaceDetection extends Frame implements Runnable {

  // program execution frame rate (millisecond)
  final int FRAME_RATE  = 1000/30;

  OpenCV cv = null;  // OpenCV Object
  Thread t  = null;  // the sample thread

  // the input video stream image
  Image frame  = null;
  // list of all face detected area
  Rectangle[] squares = new Rectangle[0];

  /**
   * Setup Frame and Object(s).
   */
  FaceDetection() {

    super( "Face Detection Sample" );

    // OpenCV setup
    cv = new OpenCV();
    cv.capture( 640, 480);
    cv.cascade( OpenCV.CASCADE_FRONTALFACE_ALT );

    // frame setup
    this.setBounds( 100, 100, cv.width, cv.height );
    this.setBackground( Color.BLACK );
    this.setVisible( true );
    this.addKeyListener(
      new KeyAdapter() {
        public void keyReleased( KeyEvent e ) {
          if ( e.getKeyCode()==KeyEvent.VK_ESCAPE ) { // ESC : release OpenCV resources
            cv.dispose();
            System.exit(0);
          }
        }
      }
    );

    // start running program
    t = new Thread( this );
    t.start();
  }

  /**
   * Draw video frame and each detected faces area.
   */
  public void paint( Graphics g ) {

    Graphics2D g2 = (Graphics2D)g;
    g2.drawImage( frame, 0, 0, null );
    g2.setColor( Color.RED );

    BasicStroke wideStroke = new BasicStroke(4.0f);
    g2.setStroke(wideStroke);
    for( Rectangle rect : squares )
      g2.drawRect( rect.x, rect.y, rect.width, rect.height );
  }

  /**
   * Execute this sample.
   */
  public void run() {
    while( t!=null && cv!=null ) {
      try {
        t.sleep( FRAME_RATE );

        // grab image from video stream
        cv.read();

        // create a new image from cv pixels data
        MemoryImageSource mis = new MemoryImageSource( cv.width, cv.height, cv.pixels(), 0, cv.width );
        frame = createImage( mis );

        // detect faces
        squares = cv.detect( 1.2f, 2, OpenCV.HAAR_DO_CANNY_PRUNING, 20, 20 );

        // of course, repaint
        repaint();
      }
      catch( InterruptedException e ) {;}
    }
  }



  /**
   * Main method.
   * @param String[]  a list of user's arguments passed from the console to this program
   */
  public static void main( String[] args ) {
    System.out.println( "\nOpenCV face detection sample\n" );
    new FaceDetection();
  }

}