halcon学习笔记——实例篇（1）车牌识别

实例一：车牌识别

素材图片：

halcon代码：

   1: read_image(Image,\'D:/MyFile/halcon/车牌识别/图片.jpg\')

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

   3: trans_from_rgb(ImageR,ImageG,ImageB,ImageResult1, ImageResult2, ImageResult3, \'hsv\')

   4:  

   5: threshold (ImageResult3, Regions, 135, 255)

   6: connection (Regions, Connection)

   7: select_shape (Connection, SelectedRegions, [\'area\',\'width\',\'height\',\'roundness\'], \'and\', [127.38,11.89,24.9602,0.4808], [168.73,14.077,26.0097,0.54074])

   8: connection(SelectedRegions, ConnectedRegions)

   9: sort_region(ConnectedRegions,SortRegions,\'upper_left\',\'true\',\'column\')

  10:  

  11: read_ocr_class_mlp(\'Industrial_0-9A-Z.omc\',OCRHandle)

  12: do_ocr_multi_class_mlp(SortRegions,ImageResult2,OCRHandle, Class, Confidence)

  13:  

  14: *显示识别的结果

  15: area_center(SortRegions, Area, Row, Column)

  16: for Index := 0 to 5 by 1

  17:     disp_message(3600, Class[Index], \'window\', Row[Index], Column[Index], \'black\', \'true\')

  18: endfor