/// <summary>
/// 条码识别
/// </summary>
/// <param name="img"></param>
/// <param name="Roi"></param>
/// <param name="type"></param>
/// <param name="Barcode"></param>
/// <returns></returns>
public static string ReadCode(VisionImage img, Roi Roi, CodeType type)
{
//HObject img,HObject Roi,BarcodeType type,out string Barcode,out HObject Box
HObject Box, Himage, HRoi, imgreduced;
string Barcode = "";
HTuple DecodedDataStrings = null;
img.Type = ImageType.U8; img.BorderWidth = 0;
HOperatorSet.GenEmptyObj(out Box);
HOperatorSet.GenEmptyObj(out Himage);
HOperatorSet.GenEmptyObj(out HRoi);
HOperatorSet.GenEmptyObj(out imgreduced);
try
{
HOperatorSet.GenImage1(out Himage, "byte", img.Width, img.Height, img.StartPtr);
HOperatorSet.GenRectangle1(out HRoi, ((RectangleContour)Roi[0].Shape).Top, ((RectangleContour)Roi[0].Shape).Left, ((RectangleContour)Roi[0].Shape).Top + ((RectangleContour)Roi[0].Shape).Height, ((RectangleContour)Roi[0].Shape).Left + ((RectangleContour)Roi[0].Shape).Width);
HOperatorSet.ReduceDomain(Himage, HRoi, out imgreduced);//image_rectified
switch (type)
{
case CodeType.Code_1D129:
HOperatorSet.FindBarCode(Himage, out Box, BarCodeHandler[CodeType.Code_1D129], "Code 128", out DecodedDataStrings);
if (DecodedDataStrings.Length > 0)
{
Barcode = DecodedDataStrings.SArr[0];
}
break;
case CodeType.Code_1D39:
HOperatorSet.FindBarCode(Himage, out Box, BarCodeHandler[CodeType.Code_1D39], "Code 39", out DecodedDataStrings);
if (DecodedDataStrings.Length > 0)
{
Barcode = DecodedDataStrings.SArr[0];
}
break;
case CodeType.Code_2D_Mat:
HTuple ResultHandles_DataMatrix = null;
HOperatorSet.FindDataCode2d(Himage, out Box, BarCodeHandler[CodeType.Code_2D_Mat], "stop_after_result_num",
1 /*找寻1个*/, out ResultHandles_DataMatrix, out DecodedDataStrings);
if (DecodedDataStrings.Length > 0)
{
Barcode = DecodedDataStrings.SArr[0];
}
break;
case CodeType.Code_QR:
HTuple ResultHandles_QR = null;
HOperatorSet.FindDataCode2d(Himage, out Box, BarCodeHandler[CodeType.Code_QR], new HTuple(), new HTuple(), out ResultHandles_QR, out DecodedDataStrings);
if (DecodedDataStrings.Length > 0)
{
Barcode = DecodedDataStrings.SArr[0];
}
break;
}
Box?.Dispose();
Himage?.Dispose();
HRoi?.Dispose();
imgreduced?.Dispose();
return(Barcode);
}
catch
{
Box?.Dispose();
Himage?.Dispose();
HRoi?.Dispose();
imgreduced?.Dispose();
return("");
}
}
/// <summary>
/// 条码识别
/// </summary>
/// <param name="img"></param>
/// <param name="Roi"></param>
/// <param name="type"></param>
/// <param name="Barcode"></param>
/// <returns></returns>
public static string ReadCode(VisionImage img, Roi Roi, CodeType type)
{
//HObject img,HObject Roi,BarcodeType type,out string Barcode,out HObject Box
HObject Box, Himage, HRoi, imgreduced;
string Barcode = "";
HTuple BarCodeHandle = null, DecodedDataStrings;
img.Type = ImageType.U8; img.BorderWidth = 0;
HOperatorSet.GenEmptyObj(out Box);
HOperatorSet.GenEmptyObj(out Himage);
HOperatorSet.GenEmptyObj(out HRoi);
HOperatorSet.GenEmptyObj(out imgreduced);
try
{
HOperatorSet.GenImage1(out Himage, "byte", img.Width, img.Height, img.StartPtr);
HOperatorSet.GenRectangle1(out HRoi, ((RectangleContour)Roi[0].Shape).Top, ((RectangleContour)Roi[0].Shape).Left, ((RectangleContour)Roi[0].Shape).Top + ((RectangleContour)Roi[0].Shape).Height, ((RectangleContour)Roi[0].Shape).Left + ((RectangleContour)Roi[0].Shape).Width);
HOperatorSet.ReduceDomain(Himage, HRoi, out imgreduced);//image_rectified
switch (type)
{
case CodeType.Code_1D129:
HOperatorSet.CreateBarCodeModel(new HTuple(), new HTuple(), out BarCodeHandle);
HOperatorSet.FindBarCode(Himage, out Box, BarCodeHandle,
"Code 128", out DecodedDataStrings);
HOperatorSet.ClearBarCodeModel(BarCodeHandle);
if (DecodedDataStrings.Length > 0)
{
Barcode = DecodedDataStrings.SArr[0];
}
break;
case CodeType.Code_1D39:
HOperatorSet.CreateBarCodeModel(new HTuple(), new HTuple(), out BarCodeHandle);
HOperatorSet.FindBarCode(Himage, out Box, BarCodeHandle,
"Code 39", out DecodedDataStrings);
HOperatorSet.ClearBarCodeModel(BarCodeHandle);
if (DecodedDataStrings.Length > 0)
{
Barcode = DecodedDataStrings.SArr[0];
}
break;
case CodeType.Code_2D_Mat:
HTuple ResultHandles_DataMatrix = null;
HOperatorSet.CreateDataCode2dModel("Data Matrix ECC 200", new HTuple(), new HTuple(), out BarCodeHandle);
HOperatorSet.SetDataCode2dParam(BarCodeHandle, "default_parameters", "maximum_recognition");
HOperatorSet.FindDataCode2d(Himage, out Box, BarCodeHandle, "stop_after_result_num",
1 /*找寻1个*/, out ResultHandles_DataMatrix, out DecodedDataStrings);
HOperatorSet.ClearDataCode2dModel(BarCodeHandle);
if (DecodedDataStrings.Length > 0)
{
Barcode = DecodedDataStrings.SArr[0];
}
break;
case CodeType.Code_QR:
HTuple ResultHandles_QR = null;
HOperatorSet.CreateDataCode2dModel("QR Code", new HTuple(), new HTuple(), out BarCodeHandle);
HOperatorSet.FindDataCode2d(Himage, out Box, BarCodeHandle, new HTuple(), new HTuple(), out ResultHandles_QR, out DecodedDataStrings);
HOperatorSet.ClearDataCode2dModel(BarCodeHandle);
if (DecodedDataStrings.Length > 0)
{
Barcode = DecodedDataStrings.SArr[0];
}
break;
}
if (Box != null)
{
Box.Dispose();
}
if (Himage != null)
{
Himage.Dispose();
}
if (HRoi != null)
{
HRoi.Dispose();
}
if (imgreduced != null)
{
imgreduced.Dispose();
}
return(Barcode);
}
catch
{
if (Box != null)
{
Box.Dispose();
}
if (Himage != null)
{
Himage.Dispose();
}
if (HRoi != null)
{
HRoi.Dispose();
}
if (imgreduced != null)
{
imgreduced.Dispose();
}
return("");
}
}
