如何把两个分割的部分合并在一起

图片中，二值化后，图形被中间的黑沟分割成了两部分，怎样把两个分割的部分合并在一起，再求整体的中心点。谢谢！

试了下这个简单的方法，但是得出来的边缘不平；

1. read_image (Image2333, 'E:/halcon//test/2333.bmp')
   
2. get_image_size (Image2333, Width, Height)
   
3. dev_open_window (0, 0, Width/2.5, Height/2.5, 'black', WindowHandle)
   
4. dev_display (Image2333)
   
5. threshold (Image2333, Regions, 107, 255)
   
6. opening_circle (Regions, RegionOpening, 2.5)
   
7. 
   
8. connection(RegionOpening, ConnectedRegions)
   
9. select_shape (ConnectedRegions, SelectedRegions, 'area', 'and', 19958, 50000)
   
10. 
    
11. fill_up (SelectedRegions, RegionFillUp)
    
12. smallest_rectangle1 (RegionFillUp, Row1, Column1, Row2, Column2)
    
13. 
    
14. gen_rectangle1 (Rectangle, Row1, Column1, Row2, Column2)
    
15. dev_display (Rectangle)
    
16. connection (Rectangle, ConnectedRegions1)
    
17. union1 (ConnectedRegions1, RegionUnion)
    
18. 
    
19. connection (RegionUnion, ConnectedRegions2)

复制代码

可以通过 blob初步定位，然后使用卡尺工具对四条边进行边缘提取，然后再拟合成矩形，提取中心，精度也会高很多！

感谢！

我能定位出来，不知道卡尺咋用，能进一步提示一下么？

read_image (Image, 'E:/halcon/211/test/44444.bmp')
*
* Matching 01: Build the ROI from basic regions
gen_rectangle1 (ModelRegion, 1168.02, 1279.93, 1467.54, 1746.86)

gen_rectangle1 (ROI_0, 1165.73, 1245.19, 1464.78, 1736.18)

*
* Matching 01: Reduce the model template
reduce_domain (Image, ModelRegion, TemplateImage)
*
* Matching 01: Create the correlation model
create_ncc_model (TemplateImage, 'auto', rad(0), rad(360), 'auto', 'use_polarity', ModelID)
*
* Matching 01: Get the reference position
area_center (ModelRegion, ModelRegionArea, RefRow, RefColumn)
*
* Matching 01: Display the model region
dev_display (Image)
dev_set_color ('green')
dev_set_draw ('margin')
dev_display (ModelRegion)
gen_cross_contour_xld (TransContours, RefRow, RefColumn, 20, 0.0)
dev_display (TransContours)
stop ()
*
* Matching 01: END of generated code for model initialization
* Matching 01:  * * * * * * * * * * * * * * * * * * * * * * *
* Matching 01: BEGIN of generated code for model application
*
* Matching 01: Loop over all specified test images
TestImages := ['E:/halcon/211/test/1111.bmp','E:/halcon/211/test/222.bmp','E:/halcon/211/test/2333.bmp','E:/halcon/211/test/44444 - Copy.bmp','E:/halcon/211/test/44444.bmp']
for T := 0 to 4 by 1
    *
    * Matching 01: Obtain the test image
    read_image (Image, TestImages[T])
    *
    * Matching 01: Find the model
    find_ncc_model (Image, ModelID, rad(0), rad(360), 0.8, 0, 0.5, 'true', 0, Row, Column, Angle, Score)
    *
    * Matching 01: Display the centers of the matches in the detected positions
    dev_display (Image)
    for I := 0 to |Score| - 1 by 1
        * Matching 01: Display the center of the match
        dev_set_color ('green')
        gen_cross_contour_xld (TransContours, Row[I], Column[I], 20, Angle)
        dev_set_color ('green')
        dev_display (TransContours)
        hom_mat2d_identity (AlignmentHomMat2D)
        hom_mat2d_translate (AlignmentHomMat2D, -RefRow, -RefColumn, AlignmentHomMat2D)
        hom_mat2d_rotate (AlignmentHomMat2D, Angle[I], 0, 0, AlignmentHomMat2D)
        hom_mat2d_translate (AlignmentHomMat2D, Row[I], Column[I], AlignmentHomMat2D)
        * Matching 01: Display the aligned model region
        affine_trans_region (ModelRegion, RegionAffineTrans, AlignmentHomMat2D, 'nearest_neighbor')
        dev_display (RegionAffineTrans)
        
        dev_set_color ('red')
        gen_cross_contour_xld (TransContours, Row3[I], Column3[I], 20, Angle)
        
        gen_rectangle2 (Rectangle1, Row[I], Column[I], Angle[I], 220, 160)
        
        reduce_domain (Image, Rectangle1, ImageReduced)
        
        threshold (ImageReduced, Regions1, 53, 255)
        
        connection (Regions1, ConnectedRegions3)
        
        select_shape (ConnectedRegions3, SelectedRegions1, 'height', 'and', 100.35, 1500)

        fill_up (SelectedRegions1, RegionFillUp1)
        union1 (RegionFillUp1, RegionUnion1)
        *去除边缘一个大的凸起部分
        closing_rectangle1 (RegionUnion1, RegionClosing1, 10, 50)
        closing_circle(RegionClosing1, RegionClosing2, 28.5)
        opening_circle(RegionClosing2, RegionOpening, 3.5)
        connection (RegionOpening, ConnectedRegions4)
        
        select_shape (ConnectedRegions4, SelectedRegions2, 'area', 'and', 19846, 100000)
        shape_trans (SelectedRegions2, RegionTrans1, 'rectangle1')
        
        area_center (RegionTrans1, Area1, Row4, Column4)
        
        gen_cross_contour_xld (TransContours, Row4, Column4, 40, Angle)
        
        dev_set_color ('green')
        
        gen_cross_contour_xld (TransContours, Row4-130, Column4-92, 20, Angle)
        stop ()
    endfor
endfor
*
* Matching 01: Clear model when done
stop ()
clear_ncc_model (ModelID)