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HALCON示例程序stamp_catalogue.hdev分割图片与文字

示例程序源码（加注释）

• 关于显示类函数解释

  gen_rectangle1 (Rect, 0, 0, 5, 5)

  dev_update_var (‘off’)

  dev_update_window (‘off’)

  dev_close_window ()

  read_image (Image, ‘stamps/swiss1’)

  get_image_size (Image, Width, Height)

  dev_open_window (0, 0, round(Width / 1.5), round(Height / 1.5), ‘black’, WindowID)

  set_display_font (WindowID, 14, ‘mono’, ‘true’, ‘false’)

for i := 1 to 9 by 1
    read_image (Image, 'stamps/swiss' + i)
    get_image_size (Image, Width, Height)
    dev_set_part (0, 0, Height - 1, Width - 1)
    dev_display (Image)
    dev_set_draw ('fill')
    * 二值化
    threshold (Image, Dark, 0, 110)
    fill_up (Dark, DarkFilled)
    connection (DarkFilled, ConnectedRegions)
    * 面积筛选区域
    select_shape (ConnectedRegions, PotStamps, 'area', 'and', 10000, 100000000)
    * 开运算
    opening_rectangle1 (PotStamps, Stamps, 10, 10)
    select_shape (ConnectedRegions, Lines, 'convexity', 'and', 0, 0.3)
    select_shape (ConnectedRegions, Character, 'area', 'and', 10, 500)
    * 使用大礼帽算法
    top_hat (Lines, Rect, RegionTopHat)
    connection (RegionTopHat, ConnTopHat)
    select_shape (ConnTopHat, AllLines, 'area', 'and', 150, 1000000)
    union1 (Character, CharacterUnion)
    dilation_rectangle1 (CharacterUnion, Words, 8, 2)
    connection (Words, SingleWords)
    shape_trans (SingleWords, RectWords, 'rectangle1')
    dev_set_draw ('margin')
    dev_display (Image)
    dev_set_color ('red')
    dev_display (AllLines)
    dev_set_color ('green')
    dev_display (Stamps)
    dev_set_color ('yellow')
    dev_display (Character)
    dev_set_color ('blue')
    dev_display (RectWords)
    if (i < 9)
        disp_continue_message (WindowID, 'black', 'true')
    endif
    stop ()
endfor
           

dev_display (Image)

处理思路

这个例子是主要讲解了blob用于区域分割。

后记

大家有什么问题可以向我提问哈，我看到了第一时间回复，希望在学习的路上多多结交良师益友。