Beispiel #1
0
        /// <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("");
            }
        }