halcon与C#混合编程（三）数字识别

转自：http://www.cnblogs.com/hanzhaoxin/archive/2013/02/07/2908924.html

示例：数字识别

要识别的图片：

























halcon源码：

1: *读取图片

2: read_image(Image,'D:/MyFile/halcon/数字识别/1.jpg')

3:

4: *图像处理

5: decompose3(Image, ImageR, ImageG, ImageB)

6: threshold (ImageG, Regions, 0, 183)

7: connection (Regions, Connection)

8:

9: select_shape (Connection, SelectedRegions, 'area', 'and', 1987.72, 7500)

10:

11: read_ocr_class_mlp('Document_0-9.omc',OCRHandle)

12: do_ocr_multi_class_mlp(SelectedRegions,ImageG,OCRHandle, Class, Confidence)

halcon导出的C#代码：

1: //

2: //  File generated by HDevelop for HALCON/DOTNET (C#) Version 10.0

3: //

4: //  This file is intended to be used with the HDevelopTemplate or

5: //  HDevelopTemplateWPF projects located under %HALCONEXAMPLES%\c#

6:

7: using System;

8: using HalconDotNet;

9:

10: public partial class HDevelopExport

11: {

12:   public HTuple hv_ExpDefaultWinHandle;

13:

14:   // Main procedure

15:   private void action()

16:   {

17:

18:     // Local iconic variables

19:

20:     HObject ho_Image, ho_ImageR, ho_ImageG, ho_ImageB;

21:     HObject ho_Regions, ho_Connection, ho_SelectedRegions;

22:

23:

24:     // Local control variables

25:

26:     HTuple hv_OCRHandle, hv_Class, hv_Confidence;

27:

28:     // Initialize local and output iconic variables

29:     HOperatorSet.GenEmptyObj(out ho_Image);

30:     HOperatorSet.GenEmptyObj(out ho_ImageR);

31:     HOperatorSet.GenEmptyObj(out ho_ImageG);

32:     HOperatorSet.GenEmptyObj(out ho_ImageB);

33:     HOperatorSet.GenEmptyObj(out ho_Regions);

34:     HOperatorSet.GenEmptyObj(out ho_Connection);

35:     HOperatorSet.GenEmptyObj(out ho_SelectedRegions);

36:

37:     //读取图片

38:     ho_Image.Dispose();

39:     HOperatorSet.ReadImage(out ho_Image, "D:/MyFile/halcon/数字识别/1.jpg");

40:

41:     //图像处理

42:     ho_ImageR.Dispose();

43:     ho_ImageG.Dispose();

44:     ho_ImageB.Dispose();

45:     HOperatorSet.Decompose3(ho_Image, out ho_ImageR, out ho_ImageG, out ho_ImageB

46:         );

47:     ho_Regions.Dispose();

48:     HOperatorSet.Threshold(ho_ImageG, out ho_Regions, 0, 183);

49:     ho_Connection.Dispose();

50:     HOperatorSet.Connection(ho_Regions, out ho_Connection);

51:

52:     ho_SelectedRegions.Dispose();

53:     HOperatorSet.SelectShape(ho_Connection, out ho_SelectedRegions, "area", "and",

54:         1987.72, 7500);

55:

56:     HOperatorSet.ReadOcrClassMlp("Document_0-9.omc", out hv_OCRHandle);

57:     HOperatorSet.DoOcrMultiClassMlp(ho_SelectedRegions, ho_ImageG, hv_OCRHandle,

58:         out hv_Class, out hv_Confidence);

59:

60:     ho_Image.Dispose();

61:     ho_ImageR.Dispose();

62:     ho_ImageG.Dispose();

63:     ho_ImageB.Dispose();

64:     ho_Regions.Dispose();

65:     ho_Connection.Dispose();

66:     ho_SelectedRegions.Dispose();

67:

68:   }

69:

70:   public void InitHalcon()

71:   {

72:     // Default settings used in HDevelop

73:     HOperatorSet.SetSystem("do_low_error", "false");

74:   }

75:

76:   public void RunHalcon(HTuple Window)

77:   {

78:     hv_ExpDefaultWinHandle = Window;

79:     action();

80:   }

81:

82: }

83:

C#工程：

1: using System;

2: using System.Collections.Generic;

3: using System.ComponentModel;

4: using System.Data;

5: using System.Drawing;

6: using System.Linq;

7: using System.Text;

8: using System.Windows.Forms;

9:

10: using HalconDotNet;

11:

12:

13: namespace NumericalRecognition

14: {

15:     public partial class FormMain : Form

16:     {

17:       //增加代码：

18:         HDevelopExport HD = new HDevelopExport();

19:       string ImagePath;

20:

21:         public FormMain()

22:       {

23:           InitializeComponent();

24:             btnRecognitionNumber.Enabled = false;

25:       }

26:

27:       private void btnOpenImage_Click(object sender, EventArgs e)

28:         {

29:             openFileDialog1.Filter = "JPEG文件|*.jpg*|BMP文件|*.bmp*|TIFF文件|*.tiff*";

30:

31:             openFileDialog1.RestoreDirectory = true;

32:

33:             openFileDialog1.FilterIndex = 1;

34:

35:             if (openFileDialog1.ShowDialog() == DialogResult.OK)

36:

37:             {

38:

39:                 ImagePath = openFileDialog1.FileName;

40: 

41:                 HD.ReadImage(hWindowControl1.HalconWindow, ImagePath);

42:

43:                 btnRecognitionNumber.Enabled = true;

44:

45:             }

46:         }

47:

48:         private void btnRecognitionNumber_Click(object sender, EventArgs e)

49:         {

50:             HD.NumberRecognition();

51:           labNumber.Text = HD.hv_Class.ToString();

52:

53:             btnRecognitionNumber.Enabled = false;

54:         }

55:   }

56:

57:     //halcon导出的类

58:     public partial class HDevelopExport

59:   {

60:         public HTuple hv_ExpDefaultWinHandle;

61:

62:         HObject ho_Image, ho_ImageR, ho_ImageG, ho_ImageB;

63:         HObject ho_Regions, ho_Connection, ho_SelectedRegions;

64:

65:

66:         // Local control variables

67:       HTuple hv_OCRHandle,  hv_Confidence;

68:         public HTuple hv_Class;

69:

70:         public void InitHalcon()

71:         {

72:             // Default settings used in HDevelop

73:             HOperatorSet.SetSystem("do_low_error", "false");

74:         }

75:

76:         public void ReadImage(HTuple Window,string ImagePath)

77:         {

78:             hv_ExpDefaultWinHandle = Window;

79:

80:             // Initialize local and output iconic variables

81:           HOperatorSet.GenEmptyObj(out ho_Image);

82:

83:           //读取图片

84:             ho_Image.Dispose();

85:             HOperatorSet.ReadImage(out ho_Image, ImagePath);

86:             HOperatorSet.DispObj(ho_Image, hv_ExpDefaultWinHandle);

87:         }

88:

89:         public void NumberRecognition()

90:         {

91:             HOperatorSet.GenEmptyObj(out ho_ImageR);

92:             HOperatorSet.GenEmptyObj(out ho_ImageG);

93:             HOperatorSet.GenEmptyObj(out ho_ImageB);

94:             HOperatorSet.GenEmptyObj(out ho_Regions);

95:             HOperatorSet.GenEmptyObj(out ho_Connection);

96:             HOperatorSet.GenEmptyObj(out ho_SelectedRegions);

97:             //图像处理

98:             ho_ImageR.Dispose();

99:             ho_ImageG.Dispose();

100:             ho_ImageB.Dispose();

101:             HOperatorSet.Decompose3(ho_Image, out ho_ImageR, out ho_ImageG, out ho_ImageB

102:                 );

103:             ho_Regions.Dispose();

104:             HOperatorSet.Threshold(ho_ImageG, out ho_Regions, 0, 183);

105:             ho_Connection.Dispose();

106:             HOperatorSet.Connection(ho_Regions, out ho_Connection);

107:

108:             ho_SelectedRegions.Dispose();

109:             HOperatorSet.SelectShape(ho_Connection, out ho_SelectedRegions, "area", "and",

110:                 1987.72, 7500);

111:

112:             HOperatorSet.ReadOcrClassMlp("Document_0-9.omc", out hv_OCRHandle);

113:             HOperatorSet.DoOcrMultiClassMlp(ho_SelectedRegions, ho_ImageG, hv_OCRHandle,

114:                 out hv_Class, out hv_Confidence);

115:

116:

117:             ho_Image.Dispose();

118:             ho_ImageR.Dispose();

119:             ho_ImageG.Dispose();

120:             ho_ImageB.Dispose();

121:             ho_Regions.Dispose();

122:             ho_Connection.Dispose();

123:             ho_SelectedRegions.Dispose();

124:

125:         }

126:

127:     }

128: }

运行结果：