JavaでJNIをつかってOpenCVのビデオキャプチャ

これを単純なキャプチャだけにしてみた．

コード

import hypermedia.video.OpenCV;

import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.image.MemoryImageSource;

public class Sample extends Frame implements Runnable {
 
 final int FRAME_RATE = 1000 / 30;

 private OpenCV cv;
 private Thread t;
 private Image frame = null;

 public Sample() {
  cv = new OpenCV();
  cv.capture(640, 480);

  setBounds(100, 100, cv.width, cv.height);
  setVisible(true);
  addKeyListener(new KeyAdapter() {
   public void keyReleased(KeyEvent e) {
    if (e.getKeyCode() == KeyEvent.VK_SPACE) {
     stop();
     System.exit(0);
    }
   }
  });

  t = new Thread(this);
  t.start();
 }

 @Override
 public void run() {
  while (t != null && cv != null) {
   try {
    Thread.sleep(FRAME_RATE);
    cv.read();
    MemoryImageSource mis = new MemoryImageSource(cv.width,
      cv.height, cv.pixels(), 0, cv.width);
    frame = createImage(mis);
    repaint();
   } catch (InterruptedException e) {
    e.printStackTrace();
   }
  }
 }

 public void paint(Graphics g) {
  if (frame == null)
   return;
  g.drawImage(frame, 0, 0, null);
 }

 public void stop() {
  t = null;
  cv.dispose();
 }

 public static void main(String[] args) {
  new Sample();
 }
}

Eclipse環境/ファイル配置

Eclipse環境/実行時引数

-d32 -Djava.library.path=${project_loc}/lib