Facing problem in detecting and decoding, current phase just can open the webcam, but can't detect the QR code. Any suggestion?
I was using the zxing for the QR code decode, and Aforge to connected the webcam.
Here the code:
I was using the zxing for the QR code decode, and Aforge to connected the webcam.
Here the code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using com.google.zxing.qrcode;
using com.google.zxing.qrcode.detector;
using COMMON = com.google.zxing.common;
using com.google.zxing;
using AForge.Video;
using AForge.Video.DirectShow;
namespace WindowsFormsApplication2
{
public partial class Form1 : Form
{
public QRCodeReader reader = new QRCodeReader();
public Bitmap current { get; private set; }
//public event EventHandler<ProcessArgs> ResultFound;
Bitmap video;
public bool Run { get; set; }
public bool newBitmap { get; set; }
private FilterInfoCollection VideoCaptureDevices;
private VideoCaptureDevice FinalVideo;
// com.google.zxing.Reader reader = new com.google.zxing.MultiFormatReader();
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
VideoCaptureDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
foreach (FilterInfo VideoCaptureDevice in VideoCaptureDevices)
{
comboBox1.Items.Add(VideoCaptureDevice.Name);
}
comboBox1.SelectedIndex = 0;
FinalVideo = new VideoCaptureDevice(VideoCaptureDevices[comboBox1.SelectedIndex].MonikerString);
FinalVideo.NewFrame += new NewFrameEventHandler(FinalVideo_NewFrame);
FinalVideo.Start();
}
private void button1_Click(object sender, EventArgs e)
{
//GetQRValue(video);
LuminanceSource source = new RGBLuminanceSource(video, video.Width, video.Height);
com.google.zxing.BinaryBitmap bitmap = new com.google.zxing.BinaryBitmap(new COMMON.HybridBinarizer(source));
Result result;
try
{
result = new MultiFormatReader().decode(bitmap);
label1.Text = result.Text;
}
catch (ReaderException re)
{
label1.Text = re.Message;
}
}
void FinalVideo_NewFrame(object sender, NewFrameEventArgs eventArgs)
{
video = (Bitmap)eventArgs.Frame.Clone();
pictureBox1.Image = video;
if (Detect( video)!="")
{
button2.Visible = false;
}
if (GetQRValue(video) != "")
{
}
}
private void button2_Click(object sender, EventArgs e)
{
if (FinalVideo.IsRunning)
{
FinalVideo.Stop();
}
}
public string Detect(Bitmap bitmap)
{
try
{
com.google.zxing.LuminanceSource source = new RGBLuminanceSource(bitmap, bitmap.Width, bitmap.Height);
var binarizer = new HybridBinarizer(source);
var binBitmap = new BinaryBitmap(binarizer);
BitMatrix bm = binBitmap.BlackMatrix;
Detector detector = new Detector(bm);
DetectorResult result = detector.detect();
string retStr = "Found at points ";
foreach (ResultPoint point in result.Points)
{
retStr += point.ToString() + ", ";
}
return retStr;
}
catch
{
return "Failed to detect QR code.";
}
}
}
}
}
}