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边缘提取三-亚像素边缘提取实例 

 1 *一个矩形的轮廓
 2 read_image (Pcb, 'E:/学习/Halcon/玩套路之边缘检测/玩套路之边缘检测/PCB/PCB.png')
 3 rgb1_to_gray(Pcb, GrayImage)
 4 
 5 *获取ROI
 6 dev_set_draw('margin')
 7 gen_rectangle1 (ROI_0, 4.475, 290.023, 153.725, 386.392)
 8 reduce_domain(GrayImage, ROI_0, ImageReduced)
 9 
10 threshold (ImageReduced, Regions, 75, 255)
11 
12 erosion_circle(Regions, RegionErosion, 3.5)
13 difference(Regions, RegionErosion, RegionDifference)
14 
15 reduce_domain(ImageReduced, RegionDifference, ImageReduced1)
16 edges_sub_pix(ImageReduced1, Edges, 'canny', 1, 20, 40)
17 
18 segment_contours_xld(Edges, ContoursSplit, 'lines_circles', 5, 4, 2)
19 count_obj(ContoursSplit, Number)
20 length_xld(ContoursSplit, Length)
21 
22 dev_display(GrayImage)
23 *Row:=[]
24 *Column:=[]
25 for I:=1 to Number by 1
26     select_obj(ContoursSplit, ObjectSelected, I)
27     dev_set_color('red')
28     dev_display(ObjectSelected)
29     dev_set_color('coral')
30     
31     if(Length[I-1]>40)
32         dev_display(ObjectSelected)
33         fit_line_contour_xld(ObjectSelected, 'tukey', -1, 0, 5, 2, RowBegin, ColBegin, RowEnd, ColEnd, Nr, Nc, Dist)
34         dev_set_color('green')
35         disp_line(3600, RowBegin, ColBegin, RowEnd, ColEnd)
36         
37     endif
38 endfor

 

posted on 2022-04-11 17:01  行远-自迩  阅读(260)  评论(0)    收藏  举报