halcon如何识别硬币？

创建模板

*画外圈圆

draw_circle (3600, Row1, Column1, Radius)

gen_circle (Circle, Row1, Column1, Radius)

dev_display (Image)

*画内圈圆

draw_circle (3600, Row2, Column2, Radius1)

gen_circle (Circle1, Row2, Column2, Radius1)

*取区域的差

difference (Circle, Circle1, RegionDifference)

reduce_domain (ImageEmphasize, RegionDifference, ImageReduced)

*创建模板

create_shape_model (ImageReduced, 'auto', -0.39, 0.79, 'auto', 'auto', 'use_polarity', 'auto', 'auto', ModelID)

write_shape_model (ModelID, 'D:/WorkSpace/硬币/1元.shm')

read_image (Image, 'E:/WorkSpace/HalconDemo/硬币检测/硬币/微信图片_20220620213720.jpg')

*均值滤波器

mean_image (Image, ImageMean, 3, 3)

*图片增亮

emphasize (ImageMean, ImageEmphasize, 7, 7, 10)

*读取模板

  read_shape_model ('1元.shm', ModelID)

  read_shape_model ('1角.shm', ModelID1)

  read_shape_model ('5角.shm', ModelID2)

  arr:=[ModelID,ModelID1,ModelID2]

  *设置字体的样式

    set_display_font (3600, 30, 'mono', 'true', 'false')

  for Index1 := 0 to 2 by 1

        *模板匹配

    find_shape_model (Image, arr[Index1], -0.39, 0.78, 0.4, 0, 0.5, 'least_squares', 2, 0.9, Row, Column, Angle, Score)

      if (|Score|>0)

          tuple_length (Row, Length1)

          for Index2 := 0 to Length1-1 by 1

              *字符串显示的位置

                set_tposition (3600, Row[Index2]-40, Column[Index2]-40)

     switch (Index1)

            case 0:

         dev_set_color ('red')

         write_string (3600, '1元')

          break

             case 1:

         dev_set_color ('green')

         write_string (3600, '1角')

          break

             case 2:

          dev_set_color ('blue')

          write_string (3600, '5角')

         break

     endswitch

          endfor

      endif

  endfor