Olá boa tarde.
Então estou tentando fazer um programa apenas de detecção de face e não fazer uso do CanvasFrame, obtive no canal do Abner Rodrigues os meios para tal, implementei o código fazendo uso do objeto videoCapture mais não funcionou ou seja não apresenta a imagem na webcam (mais não ocorre nenhum erro), mudei e fiz uso do OpenCVFrameGrabber e sim ai funcionou porém acredito que a imagem obtida da webcan ficou com um delay…, estou usando a versão 1.4.3 do Javacv.
Mudei então para a versão 1.5 para ver se rolava com o objeto videoCapture mais ai realmente deu o tilte, piorou porque a lib deve ter tido uma refatoração grande, os import´s agora todos estão errados, consegui resolver alguns mais não todos como por exemplo o objeto imencode, resize não sei em que pacote estão.
Segue o código que esta dando certo com .
public class Painel extends javax.swing.JDialog {
String fileName = "cascade/haarcascade-frontalface-alt.xml";
ClassLoader classLoader = new Deteccao().getClass().getClassLoader();
File file = new File(classLoader.getResource(fileName).getFile());
//JavaCV
//opencv_videoio.VideoCapture webSource = null;
org.bytedeco.javacv.OpenCVFrameGrabber webSource;
opencv_core.Mat cameraImage = new opencv_core.Mat();
opencv_objdetect.CascadeClassifier cascade = new opencv_objdetect
.CascadeClassifier(file.getAbsolutePath());
//opencv_face.FaceRecognizer recognizer = opencv_face.LBPHFaceRecognizer.create();
Java2DFrameConverter paintConverter = new Java2DFrameConverter();
OpenCVFrameConverter.ToMat converterToMat = new OpenCVFrameConverter.ToMat();
BytePointer mem = new BytePointer();
opencv_core.RectVector detectedFaces = new opencv_core.RectVector();
private Painel.DaemonThread myThread = null;
private javax.swing.JLabel label_photo;
public Painel(java.awt.Frame parent, boolean modal) {
super(parent, modal);
initComponents();
//recognizer.read("C:\\photos\\classifierLBPH.yml");
//recognizer.setThreshold(280);
startCamera();
}
public void stopCamera() {
if (myThread.runnable) {
myThread.runnable = false;
//webSource.release();
try {
webSource.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
dispose();
}
public void startCamera() {
new Thread() {
@Override
public void run() {
//webSource = new opencv_videoio.VideoCapture(0);
webSource = new OpenCVFrameGrabber(-1);
myThread = new Painel.DaemonThread();
Thread t = new Thread(myThread);
t.setDaemon(true);
myThread.runnable = true;
t.start();
}
}.start();
}
private void initComponents() {
setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
getContentPane().setLayout(null);
JPanel panelMain = new JPanel();
label_photo = new javax.swing.JLabel();
JPanel panel1 = new JPanel();
//panelMain.setBackground(Color.BLUE);
panelMain.setBounds(0, 0, 330, 420);
getContentPane().add(panelMain);
panelMain.setLayout(null);
label_photo.setBounds(10, 10, 310, 400);
label_photo.setBorder(new LineBorder(new Color(255, 255, 255)));
panelMain.add(label_photo);
panel1.setBorder(new LineBorder(new Color(255, 255, 255)));
panel1.setBounds(330, 0, 430, 420);
panel1.setBackground(new java.awt.Color(255, 255, 255));
getContentPane().add(panel1);
panel1.setLayout(null);
setSize(new java.awt.Dimension(780, 420));
setLocationRelativeTo(null);
}
public static void main(String arg[]) {
/* Create and display the dialog */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
Painel dialog = new Painel(new javax.swing.JFrame(), true);
dialog.addWindowListener(new java.awt.event.WindowAdapter() {
@Override
public void windowClosing(java.awt.event.WindowEvent e) {
System.exit(0);
}
});
dialog.setVisible(true);
}
});
}
class DaemonThread implements Runnable {
protected volatile boolean runnable = false;
@Override
public void run() {
synchronized (this) {
while (runnable) {
try {
webSource.start();
org.bytedeco.javacv.Frame frameCapturado = null;
long startTime = System.currentTimeMillis();
long frame = 0;
while ((frameCapturado = webSource.grab()) != null && runnable) {
//if ( (frameCapturado = webSource.grab()) != null) {
//BufferedImage buff = paintConverter.getBufferedImage(frameCapturado, 1);
//Graphics g = canvas.getGraphics();
//g.drawImage(buff, 0, 0, CAPTUREWIDTH, CAPTUREHRIGHT, 0, 0, buff.getWidth(), buff.getHeight(), null);
//webSource.retrieve(cameraImage);
cameraImage = converterToMat.convert(frameCapturado);
Graphics g = label_photo.getGraphics();
opencv_core.Mat imageGray = new opencv_core.Mat();
cvtColor(cameraImage, imageGray, COLOR_BGRA2GRAY);
opencv_core.RectVector detectedFace = new opencv_core.RectVector();
cascade.detectMultiScale(imageGray, detectedFace, 1.1, 2, 0, new opencv_core.Size(150, 150), new opencv_core.Size(500, 500));
for (int i = 0; i < detectedFace.size(); i++) {
opencv_core.Rect dadosFace = detectedFace.get(i);
rectangle(cameraImage, dadosFace, new opencv_core.Scalar(0, 255, 0, 0));
opencv_core.Mat faceCapturada = new opencv_core.Mat(imageGray, dadosFace);
opencv_imgproc.resize(faceCapturada, faceCapturada, new opencv_core.Size(160, 160));
}
imencode(".bmp", cameraImage, mem);
Image im = ImageIO.read(new ByteArrayInputStream(mem.getStringBytes()));
BufferedImage buff = (BufferedImage) im;
try {
if (g.drawImage(buff, 0, 0, 310, 400, 0, 0, buff.getWidth(), buff.getHeight(), null)) {
if (runnable == false) {
this.wait();
}
}
} catch (NullPointerException e) {
e.printStackTrace();
}
}
} catch (IOException | InterruptedException ex) {
ex.printStackTrace();
}
}
}
}
}
}
e aqui o código que esta não esta apresentando a imagem da webcam que usa o objeto VideoCapture
public class Painel2 extends javax.swing.JDialog {
String fileName = "cascade/haarcascade-frontalface-alt.xml";
ClassLoader classLoader = new Deteccao().getClass().getClassLoader();
File file = new File(classLoader.getResource(fileName).getFile());
//JavaCV
VideoCapture webSource = null;
//opencv_videoio.VideoCapture webSource = null;
Mat cameraImage = new Mat();
CascadeClassifier cascade = new CascadeClassifier(file.getAbsolutePath());
//opencv_face.FaceRecognizer recognizer = opencv_face.LBPHFaceRecognizer.create();
BytePointer mem = new BytePointer();
RectVector detectedFaces = new RectVector();
private Painel2.DaemonThread myThread = null;
private javax.swing.JLabel label_photo;
public Painel2(java.awt.Frame parent, boolean modal) {
super(parent, modal);
initComponents();
//recognizer.read("C:\\photos\\classifierLBPH.yml");
//recognizer.setThreshold(280);
startCamera();
}
public void stopCamera() {
myThread.runnable = false;
webSource.release();
dispose();
}
public void startCamera() {
new Thread() {
@Override
public void run() {
webSource = new VideoCapture(-1);
myThread = new Painel2.DaemonThread();
Thread t = new Thread(myThread);
t.setDaemon(true);
myThread.runnable = true;
t.start();
}
}.start();
}
private void initComponents() {
setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
getContentPane().setLayout(null);
JPanel panelMain = new JPanel();
label_photo = new javax.swing.JLabel();
JPanel panel1 = new JPanel();
panelMain.setBounds(0, 0, 330, 420);
getContentPane().add(panelMain);
panelMain.setLayout(null);
label_photo.setBounds(10, 10, 310, 400);
label_photo.setBorder(new LineBorder(new Color(255, 255, 255)));
panelMain.add(label_photo);
panel1.setBorder(new LineBorder(new Color(255, 255, 255)));
panel1.setBounds(330, 0, 430, 420);
panel1.setBackground(new java.awt.Color(255, 255, 255));
getContentPane().add(panel1);
panel1.setLayout(null);
setSize(new java.awt.Dimension(780, 420));
setLocationRelativeTo(null);
}
public static void main(String arg[]) {
/* Create and display the dialog */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
Painel2 dialog = new Painel2(new javax.swing.JFrame(), true);
dialog.addWindowListener(new java.awt.event.WindowAdapter() {
@Override
public void windowClosing(java.awt.event.WindowEvent e) {
System.exit(0);
}
});
dialog.setVisible(true);
}
});
}
class DaemonThread implements Runnable {
protected volatile boolean runnable = false;
@Override
public void run() {
synchronized (this) {
while (runnable) {
try {
if (webSource.grab()) {
webSource.retrieve(cameraImage);
Graphics g = label_photo.getGraphics();
org.bytedeco.opencv.opencv_core.Mat imageGray = new org.bytedeco.opencv.opencv_core.Mat();
cvtColor(cameraImage, imageGray, COLOR_BGRA2GRAY);
org.bytedeco.opencv.opencv_core.RectVector detectedFace = new org.bytedeco.opencv.opencv_core.RectVector();
cascade.detectMultiScale(imageGray, detectedFace, 1.1, 2, 0, new org.bytedeco.opencv.opencv_core.Size(150, 150), new org.bytedeco.opencv.opencv_core.Size(500, 500));
for (int i = 0; i < detectedFace.size(); i++) {
org.bytedeco.opencv.opencv_core.Rect dadosFace = detectedFace.get(i);
rectangle(cameraImage, dadosFace, new org.bytedeco.opencv.opencv_core.Scalar(0, 255, 0, 0));
org.bytedeco.opencv.opencv_core.Mat faceCapturada = new org.bytedeco.opencv.opencv_core.Mat(imageGray, dadosFace);
resize(faceCapturada, faceCapturada, new org.bytedeco.opencv.opencv_core.Size(160, 160));
}
imencode(".bmp", cameraImage, mem);
Image im = ImageIO.read(new ByteArrayInputStream(mem.getStringBytes()));
BufferedImage buff = (BufferedImage) im;
try {
if (g.drawImage(buff, 0, 0, 310, 400, 0, 0, buff.getWidth(), buff.getHeight(), null)) {
if (runnable == false) {
this.wait();
}
}
} catch (NullPointerException e) {
e.printStackTrace();
}
}
} catch (IOException | InterruptedException ex) {
ex.printStackTrace();
}
}
}
}
}
}
