halcon如何识别曲率

halcon新人，想学好机器视觉，请问如何识别出种子的尖端，也就是出芽点，是求曲率最大的点吗

我感觉不太好做，扁长的还行，椭圆的就很难弄出来了，不晓得用深度学习行不行

哪个算发芽的圈出来看看

思路仅供参考，除了那个近似圆形的误别有点问题，其它的都能正确识别

1. read_image (Image205146eayten6lo17nzo7a, 'C:/Users/Administrator/Desktop/205146eayten6lo17nzo7a.jpg')
   
2. threshold (Image205146eayten6lo17nzo7a, Region, 160, 255)
   
3. connection (Region, ConnectedRegions)
   
4. select_shape (ConnectedRegions, SelectedRegions, 'area', 'and', 800, 1500)
   
5. dilation_circle (SelectedRegions, RegionDilation, 3.5)
   
6. union1 (RegionDilation, RegionUnion)
   
7. reduce_domain (Image205146eayten6lo17nzo7a, RegionUnion, ImageReduced)
   
8. edges_color_sub_pix (ImageReduced, Edges, 'canny', 1, 20, 40)
   
9. select_contours_xld (Edges, SelectedContours, 'contour_length', 50, 20000, -0.5, 0.5)
   
10. area_center_xld (SelectedContours, Area1, Row2, Column2, PointOrder)
    
11. gen_cross_contour_xld (Cross1, Row2, Column2, 26, 0.785398)
    
12. shape_trans_xld (SelectedContours, XLDTrans, 'rectangle2')
    
13. count_obj (XLDTrans, Number)
    
14. gen_empty_obj (EmptyObject)
    
15. for Index := 1 to Number by 1
    
16.     select_obj (SelectedContours, ObjectSelected, Index)
    
17.     select_obj (XLDTrans, ObjectSelected1, Index)
    
18.     gen_region_contour_xld (ObjectSelected, Region1, 'filled')
    
19.     smallest_rectangle2_xld (ObjectSelected1, Row, Column, Phi, Length1, Length2)
    
20.     gen_rectangle2_contour_xld (Rectangle, Row, Column, Phi, Length1-0.01, Length2+3)
    
21.     intersection_contours_xld (ObjectSelected, Rectangle, 'all', Row, Column, IsOverlapping)
    
22.     gen_region_points (Region3, Row, Column)
    
23.     connection (Region3, ConnectedRegions2)
    
24.     area_center (ConnectedRegions2, Area2, Row3, Column3)
    
25.     gen_cross_contour_xld (Cross, Row3, Column3, 36, 0.785398)
    
26.     gen_circle (Circle, Row3, Column3, [10.5,10.5])
    
27.     intersection (Circle, Region1, RegionIntersection)
    
28.     area_center (RegionIntersection, Area, Row1, Column1)
    
29.     tuple_find (Area, min(Area), Indices)
    
30.     gen_cross_contour_xld (Cross2, Row3[Indices], Column3[Indices], 26, Phi)
    
31. *     dev_display (Image205146eayten6lo17nzo7a)
    
32. *     dev_display (Cross2)
    
33.     concat_obj (EmptyObject, Cross2, EmptyObject)
    
34. *     stop ()
    
35. endfor
    
36. 
    
37. dev_display (Image205146eayten6lo17nzo7a)
    
38. dev_display (EmptyObject)

复制代码

halcon2016 发表于 2023-9-1 11:28
思路仅供参考，除了那个近似圆形的误别有点问题，其它的都能正确识别

学习学习

参考halcon官方案例clip

halcon2016 发表于 2023-9-1 11:28
思路仅供参考，除了那个近似圆形的误别有点问题，其它的都能正确识别

思路很妙

树lqy 发表于 2023-9-1 15:05
参考halcon官方案例clip

牛皮牛皮，这个方法好

树lqy 发表于 2023-9-1 15:05
参考halcon官方案例clip

这个方法很不错

树lqy 发表于 2023-9-1 15:05
参考halcon官方案例clip

这个方法好,牛皮牛皮