Java code to Generate QR Code and Read QR Code using Camera

Pubblicato il: 11 dicembre 2022
sul canale di: Sir JoeCabz TV

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Libraries: https://drive.google.com/drive/folders/1KU...

Method:
public void generateQRcode(String data, String path, String charset, Map map, int h, int w) throws WriterException, IOException {

BitMatrix matrix = new MultiFormatWriter().encode(new String(data.getBytes(charset), charset), BarcodeFormat.QR_CODE, w, h);
MatrixToImageWriter.writeToFile(matrix, path.substring(path.lastIndexOf('.') + 1), new File(path));
}
-----------------------------------------------------------------------------------------
CAMERA CODE
Webcam webcam = Webcam.getDefault(); //Generate Webcam Object
webcam.setViewSize(new Dimension(320,240));
WebcamPanel webcamPanel = new WebcamPanel(webcam);
webcamPanel.setMirrored(false);
JFrame jFrame = new JFrame();
jFrame.add(webcamPanel);
jFrame.pack();
jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jFrame.setLocationRelativeTo(null);
jFrame.setVisible(true);

do{
try {
BufferedImage image = webcam.getImage();
LuminanceSource source = new BufferedImageLuminanceSource(image);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
Result result = new MultiFormatReader().decode(bitmap);
if(result.getText() != null){
JOptionPane.showMessageDialog(null, result.getText(), "INFORMATION", JOptionPane.INFORMATION_MESSAGE);
jFrame.setVisible(false);
jFrame.dispose();
webcam.close();
break;
}

} catch (Exception e) {
}
}while(true);

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