实例介绍
条码识别
【核心代码】
usingSystem;
usingSystem.Collections.Generic;
usingSystem.ComponentModel;
usingSystem.Data;
usingSystem.Diagnostics;
usingSystem.Drawing;
usingSystem.Linq;
usingSystem.Text;
usingSystem.Windows.Forms;
usingSystem.Drawing.Imaging;
usingThoughtWorks.QRCode.Codec;
usingThoughtWorks.QRCode.Codec.Data;
usingZBar;
usingZXing;
usingImage = System.Drawing.Image;
namespace条码识别
{
publicpartialclassMainForm : Form
{
publicMainForm()
{
InitializeComponent();
}
/// <summary>
/// Zbar条码识别
/// </summary>
privatevoidScanBarCodeZbar(stringfileName)
{
Image primaryImage = Image.FromFile(fileName);
// Bitmap pImg = MakeGrayscale3((Bitmap)primaryImage);
using(ZBar.ImageScanner scanner =newZBar.ImageScanner())
{
scanner.SetConfiguration(ZBar.SymbolType.QRCODE, ZBar.Config.Enable, 1);
List<ZBar.Symbol> symbols =newList<ZBar.Symbol>();
System.Diagnostics.Stopwatch watch =newStopwatch();
watch.Start();
symbols = scanner.Scan((Image)primaryImage);
watch.Stop();
TimeSpan timeSpan = watch.Elapsed;
if(symbols !=null&& symbols.Count > 0)
{
stringresult ="扫描执行时间：" timeSpan.TotalMilliseconds.ToString();
symbols.ForEach(s => result =",条码内容:" s.Data " 条码质量:" s.Type Environment.NewLine);
MessageBox.Show(result);
}
}
}
/// <summary>
/// Zxing条码识别
/// </summary>
privatevoidScanBarCodeZxing(stringfileName)
{
Image primaryImage = Image.FromFile(fileName);
Bitmap pImg = MakeGrayscale3((Bitmap)primaryImage);
BarcodeReader reader =newBarcodeReader();
System.Diagnostics.Stopwatch watch =newStopwatch();
watch.Start();
Result result = reader.Decode((Bitmap)pImg);//通过reader解码
watch.Stop();
TimeSpan timeSpan = watch.Elapsed;
MessageBox.Show("二维码值："result",扫描执行时间：" timeSpan.TotalMilliseconds.ToString());
}
/// <summary>
///thoughtworkqrcode条码识别
/// </summary>
privatevoidScanBarCodeTWQR(stringfileName)
{
Image primaryImage = Image.FromFile(fileName);
Bitmap pImg = (Bitmap)primaryImage;// MakeGrayscale3((Bitmap)primaryImage);
try
{
System.Diagnostics.Stopwatch watch =newStopwatch();
watch.Start();
stringdecodedString =newQRCodeDecoder().decode(newQRCodeBitmapImage(pImg), Encoding.UTF8);
watch.Stop();
TimeSpan timeSpan = watch.Elapsed;
MessageBox.Show("二维码值：" decodedString ",扫描执行时间：" timeSpan.TotalMilliseconds.ToString());
}
catch(Exception ex)
{
MessageBox.Show("好难过");
}
}
/// <summary>
/// 处理图片灰度
/// </summary>
/// <param name="original"></param>
/// <returns></returns>
publicstaticBitmap MakeGrayscale3(Bitmap original)
{
//create a blank bitmap the same size as original
Bitmap newBitmap =newBitmap(original.Width, original.Height);
//get a graphics object from the new image
Graphics g = Graphics.FromImage(newBitmap);
//create the grayscale ColorMatrix
System.Drawing.Imaging.ColorMatrix colorMatrix =newSystem.Drawing.Imaging.ColorMatrix(
newfloat[][]
{
newfloat[] {.3f, .3f, .3f, 0, 0},
newfloat[] {.59f, .59f, .59f, 0, 0},
newfloat[] {.11f, .11f, .11f, 0, 0},
newfloat[] {0, 0, 0, 1, 0},
newfloat[] {0, 0, 0, 0, 1}
});
//create some image attributes
ImageAttributes attributes =newImageAttributes();
//set the color matrix attribute
attributes.SetColorMatrix(colorMatrix);
//draw the original image on the new image
//using the grayscale color matrix
g.DrawImage(original,newRectangle(0, 0, original.Width, original.Height),
0, 0, original.Width, original.Height, GraphicsUnit.Pixel, attributes);
//dispose the Graphics object
g.Dispose();
returnnewBitmap;
}
privatevoidbutton2_Click(objectsender, EventArgs e)
{
OpenFileDialog fileDialog =newOpenFileDialog();
DialogResult dr = fileDialog.ShowDialog();
if(dr == DialogResult.OK)
{
switch(comboBox1.Text.Trim().ToLower())
{
case "zbar":
{
ScanBarCodeZbar(fileDialog.FileName);
break;
}
case"zxing":
{
ScanBarCodeZxing(fileDialog.FileName);
break;
}
case"thoughtworkqrcode":
{
ScanBarCodeTWQR(fileDialog.FileName);
break;
}
}
}
}
}
}
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