//识别二维码
public bool DoCheckTicket(ref string strQrCode)
{
DataTickCam data = new DataTickCam();
if (!mainWin.CapTicket(data))
{
return(false);
}
strQrCode = string.Empty;
using (Bitmap bmGray = WinCall.BitmapConvetGray(data.bm))
{
//垂直翻转
bmGray.RotateFlip(RotateFlipType.Rotate90FlipX);
using (ImageScanner scanner = new ImageScanner())
{
scanner.SetConfiguration(SymbolType.None, Config.Enable, 1);
List <Symbol> symbols = scanner.Scan(bmGray);
WinCall.TraceMessage(string.Format("***Ticket syms={0}", symbols.Count)); //! for test
foreach (var sym in symbols)
{
var symType = sym.GetType();
if (!string.IsNullOrEmpty(sym.Data))
{
strQrCode = sym.Data;
break; //只取一个结果
}
}
}
}
data.bm.Dispose();
return(false == string.IsNullOrEmpty(strQrCode));
}
public void ConvertAndScanBMP()
{
System.Drawing.Image img = System.Drawing.Image.FromFile("images/barcode.bmp");
ImageScanner scanner = new ImageScanner();
List <Symbol> symbols = scanner.Scan(img);
Assert.AreEqual(1, symbols.Count, "Didn't find the symbols");
Assert.IsTrue(SymbolType.EAN13 == symbols[0].Type, "Didn't get the barcode type right");
Assert.AreEqual("0123456789012", symbols[0].Data, "Didn't read the correct barcode");
}
/// <summary> 检查图片中存在的商品条码
/// </summary>
/// <param name="ScreenShot">摄像头截图</param>
/// <returns>返回 String：条码值 null：图片中不存在条码</returns>
public String CheckBarCode(Bitmap ScreenShot)
{
Result barcode_ZXing = CodeReader.Decode(ScreenShot);//使用ZXing解码
if (barcode_ZXing == null)
{ //若ZXing没有识别出条码
List <Symbol> barcode_ZBar = CodeReader_2.Scan(ScreenShot); //使用ZBar解码
if (barcode_ZBar == null || barcode_ZBar.Count == 0)
{
return(null);//若条码为空则返回空
}
else
{
return(barcode_ZBar[0].Data);//返回ZBar识别出的结果
}
}
return(barcode_ZXing.Text);//返回条码对应字符串
}
public static string GetBarcode_ZBAR(string fileName)
{
string text;
using (var img = new Bitmap(fileName))
{
text = "";
if (img.Width > 0 && img.Height > 0)
{
System.Drawing.Image oBitmap = System.Drawing.Image.FromFile(fileName);
ImageScanner oImageScanner = new ImageScanner();
var symbols = oImageScanner.Scan(oBitmap);
if (symbols.Count > 0)
{
text = symbols[0].ToString();
text = text.Substring(8);
}
}
}
return(text);
}
/// <summary>
/// Detecta múltiples tags en una imagen
/// </summary>
/// <param name="image">Imagen a procesar</param>
/// <param name="showProcessedInput">Si se fija a true se muestra el resultado del procesamiento previo que
/// se realiza antes del proceso de detección de tags</param>
/// <returns>Lista de tags</returns>
public static List <Tag> detectTags(System.Drawing.Image image, bool showProcessedInput = false)
{
List <Tag> result = new List <Tag>();
// Procesamos la imagen de entrada
using (System.Drawing.Image img = image)//prepareInput(image, showProcessedInput))
{
using (ImageScanner scanner = new ImageScanner())
{
List <Symbol> symbols = scanner.Scan(img);
if (symbols != null && symbols.Count > 0)
{
// Iteramos los resultados y los transformamos a objetos Tag
foreach (Symbol symbol in symbols)
{
result.Add(new Tag(symbol));
}
}
}
}
return(result);
}
public void ScanCode(System.Drawing.Image image)
{
ZBar.ImageScanner scanner = new ImageScanner();
scanner.Scan(image);
List <ZBar.Symbol> symbols = new List <Symbol>();
ZXing.OneD.Code93Reader reader3 = new ZXing.OneD.Code93Reader();
reader.ResultFound += Reader_ResultFound;
if (symbols != null && symbols.Count > 0)
{
string r = string.Empty;
foreach (var s in symbols)
{
textBox1.Text = s.Data;
}
}
//ZBar.ImageScanner scanner= new ImageScanner();
//scanner.SetConfiguration(ZBar.SymbolType.None, ZBar.Config.Enable, 0);
//scanner.SetConfiguration(ZBar.SymbolType.CODE39, ZBar.Config.Enable, 1);
//scanner.SetConfiguration(ZBar.SymbolType.CODE128, ZBar.Config.Enable, 1);
//List<ZBar.Symbol> symbols = new List<Symbol>();
//symbols = scanner.Scan(image);
//if (symbols!=null&&symbols.Count>0) {
// string result = string.Empty;
// foreach (var s in symbols) {
// textBox1.Text=s.Data;
// }
//}
Result result = reader.Decode((Bitmap)image);
foreach (var point in result.ResultPoints)
{
Bitmap bitmap = new Bitmap(image);
// panel1.DrawToBitmap(bitmap, new Rectangle(new Point((int)point.X,(int)point.Y), new Size(result.)));
panel1.BackgroundImage = bitmap;
}
textBox1.Text = result.Text;
}
/// <summary>
/// Capture and scan images
/// </summary>
/// <remarks>
/// This method will also flip the images so that they need not be flipped when drawing.
/// </remarks>
private void CaptureVideo(Video video, ImageScanner scanner)
{
while (true)
{
using (ZBar.Image frame = video.NextFrame()){
using (ZBar.Image bwImg = frame.Convert(0x30303859)){
//Scan the image for bar codes
scanner.Scan(bwImg);
//Get the data, width, height and symboles for the image
byte[] data = bwImg.Data;
int w = (int)bwImg.Width;
int h = (int)bwImg.Height;
var symbols = new List <Symbol> (bwImg.Symbols);
// Resize
// number of pixels to shift in the original image
double stepX = (double)w / AllocatedWidth;
double stepY = (double)h / AllocatedHeight;
// don't do enlarging
if (stepX <= 1 && stepY <= 1)
{
return;
}
double smallestStep = Math.Max(stepX, stepY);
stepX = stepY = smallestStep;
int maxHeight = (int)((double)h / smallestStep);
int maxWidth = (int)((double)w / smallestStep);
int newPixels = maxWidth * maxHeight;
byte[] resizedFrame = new byte[newPixels];
double sX = 0, sY = 0;
int i;
for (int j = 0; j < newPixels; j++)
{
i = (int)sX + (int)((int)sY * w);
// stop exceptions
if (i >= data.Length)
{
Console.WriteLine("Trying to access {0} on the old frame, up to {1} on new frame", i, j);
break;
}
resizedFrame[j] = data[i];
sX += stepX;
if ((j + 1) % maxWidth == 0)
{
sY += stepY;
sX = 0;
}
}
w = maxWidth;
h = maxHeight;
data = resizedFrame;
//Flip the image vertically, if needed
if (this.Flip)
{
for (int ih = 0; ih < h; ih++)
{
for (int iw = 0; iw < w / 2; iw++)
{
//TODO: The offsets below could be computed more efficiently, but I don't care this happens on a thread... :)
int p1 = w * ih + iw;
int p2 = w * ih + (w - iw - 1);
//Swap bytes:
byte b1 = data[p1];
data[p1] = data[p2];
data[p2] = b1;
}
}
}
if (Rotate)
{
int l = data.Length - 1;
for (int p = 0; p < data.Length / 2; p++)
{
//Swap bytes:
var j = l - p;
byte b1 = data[j];
data[j] = data[p];
data[p] = b1;
}
}
//Lock the drawing process and pass it the data we aquired
lock (this.drawLock){
this.toDraw = data;
this.toDrawWidth = w;
this.toDrawHeight = h;
this.symbols = symbols;
}
this.ThreadSafeRedraw();
}
}
}
}