【halcon】编程技巧：鼠标擦除

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本文使用halcon实现鼠标擦除的功能，可用于优化创建模板。

1. 框选模板

2. 区域擦除

上述创建的模板区域有很多干扰，我们想去除，比如只提取芯片区域，进行鼠标擦除

3. 区域擦除后的模板

4. 源码

   用鼠标擦除后的区域创建模板
   dev_open_window(0, 0, 512, 512, 'black', WindowHandle)
   dev_set_draw('margin')
   read_image (Image, 'printer_chip/printer_chip_01')
   *选择区域
   disp_message (WindowHandle, '框选一个区域，右键结束', 'window', 12, 12, 'red', 'false')
   draw_rectangle1 (WindowHandle, Row1, Column1, Row2, Column2)
   gen_rectangle1 (Rectangle, Row1, Column1, Row2, Column2)
   reduce_domain (Image, Rectangle, ImageReduced)

   • dev_clear_window ()
     dev_display (ImageReduced)
     dev_display(Rectangle)
     dev_set_draw('fill')
     橡皮擦功能,特征屏蔽*********************************
     *橡皮擦大小
     EraserSize:=50
     *橡皮擦形状
     EraserType:='rectangle'
     gen_empty_obj(region_removeds)
     *橡皮擦路过的坐标集
     Rows := []
     Cols := []
     *擦除工作
     Button:=0
     set_display_font (WindowHandle, 26, 'mono', 'true', 'false')
     disp_message (WindowHandle, '按下鼠标进行擦除功能，松开鼠标将结束', 'window', 12, 12, 'red', 'false')
     while (Button == 0)
     get_mbutton (WindowHandle, Row, Column, Button)
     while (Button == 1)
     get_mposition (WindowHandle, Row, Column, Button)
     Rows := [Rows,Row]
     Cols := [Cols,Column]
     *生成橡皮擦擦过的区域
     if(EraserType=='rectangle')
     gen_rectangle2 (Eraser,Row, Column,0, EraserSize,EraserSize)
     else
     gen_circle (Eraser, Row, Column, EraserSize)
     endif
     *橡皮擦区域合并
     union2(region_removeds,Eraser,region_removeds)
     endwhile
     endwhile
     *区域相减
     difference (ImageReduced, region_removeds, RegionDifference)
     reduce_domain (ImageReduced, RegionDifference, ImageReduced)

   创建模板****************************************************
   create_shape_model (ImageReduced, 'auto', -0.39, 0.79, 'auto', 'auto', 'use_polarity', 'auto', 'auto', ModelID)
   find_shape_model (Image, ModelID, rad(-180), rad(180), 0.5, 1, 0.5, 'least_squares', 0, 0.9, Row, Column, Angle, Score)
   *获取模板轮廓
   get_shape_model_contours (ModelContours, ModelID, 1)
   dev_clear_window ()
   dev_display (Image)
   dev_set_line_width (2)
   *将模板映射到目标上
   vector_angle_to_rigid (0, 0, 0, Row, Column, Angle, HomMat2D)
   affine_trans_contour_xld (ModelContours, ContoursAffinTrans, HomMat2D)