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I’m trying to connect Opencv with a D-Link DCS-932L IP camera. IP, password, user and port are correct, but nothing works. I believe the error is in relation to the URL format. Below follows the code.
public static void main(String args[]) throws Exception {
String end = "http://USER:PWD@IPADDRESS:8088/mjpeg.cgi?user=USERNAME&password=PWD&channel=0&.mjpg";
ContainerImagem toc = new ContainerImagem();
Button button = new Button();
button.addActionListener(null);
JFrame frame = new JFrame("Captura de face");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(600, 600);
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
CascadeClassifier faceDetector = new CascadeClassifier("C:\\Users\\leonardo\\Documents\\opencv\\sources\\data\\haarcascades\\haarcascade_frontalface_alt.xml");
toc.setSize(2000, 2000);
frame.add(toc);
frame.setVisible(true);
Mat webcam_image = new Mat();
MatToBufImg mat2Buf = new MatToBufImg();
VideoCapture capture = new VideoCapture();
capture.open(end);
if (capture.isOpened()) {
Thread.sleep(10000);
while (true) {
capture.read(webcam_image);
if (!webcam_image.empty()) {
frame.setSize(webcam_image.width(), webcam_image.height());
MatOfRect faceDetections = new MatOfRect();
faceDetector.detectMultiScale(webcam_image, faceDetections);
for (Rect rect : faceDetections.toArray()) {
Core.rectangle(webcam_image, new Point(rect.x, rect.y), new Point(rect.x + rect.width, rect.y + rect.height), new Scalar(0, 255, 0));// mat2Buf, mat2Buf);
}
// System.out.println("...............face detected: " + faceDetections.toArray().length);
if (faceDetections.toArray().length == 0) {
// System.out.println("Sorry Face not detected!");
}
mat2Buf.setMatrix(webcam_image, ".jpg");
toc.setImage(mat2Buf.getBufferedImage());
toc.repaint();
} else {
System.out.println("problems with webcam image capture");
break;
}
}
} else {
JOptionPane.showMessageDialog(null, "O sistema não conseguiu se conectar com esta câmera.");
}
capture.release();
}
Please be more specific in the error that is happening, the term
nada funciona
is very comprehensive!– Marciano.Andrade
It turns out that there is no connection to the camera and the video is not displayed. "System failed to connect with this camera" message is displayed. For local Web cam, it works normally.
– LeoPinheiroDeSouza