怎么在这幅图片上把已经有的圆抠出来

怎么在这幅图片上把已经有的圆抠出来，然后不要背景，然后再判断这些圆里面有十字痕迹的保留，没有的去掉，因为要判断是不是钉子

缩小定义域 reduce_domain，之后就可以单独每个独立阈值找螺丝十字！

上图这些圆都是object, 怎么转换成region, 因为 reduce_domain需要对region进行操作

youyiyang 发表于 2021-10-28 20:17
上图这些圆都是object, 怎么转换成region, 因为 reduce_domain需要对region进行操作

你怎么提取出来的呢？阈值找到的出来就是区域region，其他找到的，就自己转换吧。比如：轮廓转区域 gen_region_contour_xld

圆里面的十字怎么判断？

1. * 识别区域
   
2. *scale_image(Image,Invert,minGray,maxGray)
   
3. gen_rectangle1 (Rectangle, startY, startX, endY, endX)
   
4. reduce_domain (Image, Rectangle, ImageReduced)
   
5. * 初步边缘提取
   
6. edges_image (ImageReduced, ImaAmp, ImaDir, 'lanser2', 0.9, 'nms', 8, 16)
   
7. threshold (ImaAmp, Region1, 1, 255)
   
8. connection (Region1, ConnectedRegions)
   
9. select_shape (ConnectedRegions, SelectedRegions, ['outer_radius','anisometry','area'], 'and', [10,1,50], [30,3.9,300])
   
10. shape_trans (SelectedRegions, RegionTrans, 'outer_circle')
    
11. dilation_circle (RegionTrans, RegionDilation,5.5)
    
12. union1 (RegionDilation, RegionUnion)
    
13. reduce_domain (Image, RegionUnion, ImageReduced2)
    
14. * 详细边缘提取
    
15. edges_sub_pix (ImageReduced2, Edges, 'lanser2', 0.1, 8, 16)
    
16. select_shape_xld (Edges, SelectedXLD, ['contlength','outer_radius','circularity'], 'and', [40,10,0.5], [99999,99999,1])
    
17. 
    
18. *segment_contours_xld (SelectedXLD, ContoursSplit, 'lines_circles', 4, 2, 2)
    
19. gen_region_contour_xld(SelectedXLD, SelectedRegion_ContoursSplit,'filled')
    
20. union1 (SelectedRegion_ContoursSplit, RegionUnion_new)
    
21. reduce_domain( Image,RegionUnion_new, ImageReduced_RegionUnion_new)
    
22. threshold(ImageReduced_RegionUnion_new, Region2, 1, 255)
    
23. connection (Region2, ConnectedRegions2)
    
24. 
    
25. * 筛选
    
26. count_obj (ConnectedRegions2, NumberContours)
    
27. *gen_empty_obj (Circles)
    
28. for i := 1 to NumberContours by 1
    
29.     select_obj (ConnectedRegions2, ObjectSelected, i)
    
30.     gen_region_contour_xld(ObjectSelected, Object123, 'filled')
    
31.     *dev_display (ObjectSelected)
    
32.     reduce_domain(Image, Object123, Image_Object_Reduced)
    
33.     *get_contour_global_attrib_xld (ObjectSelected, 'cont_approx', Attrib)
    
34.     *if (Attrib == 1)
    
35.     *    concat_obj (Circles, ObjectSelected, Circles)
    
36.     *endif
    
37. endfor

复制代码

现在能够把钉子和类似钉子的圆形取出来，而且可以循环检查，但是gen_region_contour_xld(ObjectSelected, Object123, 'filled')和 reduce_domain(Image, Object123, Image_Object_Reduced)因为ObjectSelected不是region所以不行