筛选出的区域有什么方法可以定向扩展某个位置吗

突发奇想，是否有方法扩展区域的某个位置
比如图中筛选出目标后，有什么方法拉伸到黄框位置，其它边缘保持不变

1. read_image (Image13, 'C:/Users/Administrator/Desktop/13.png')
   
2. rgb1_to_gray (Image13, GrayImage)
   
3. threshold (GrayImage, Regions, 74, 220)
   
4. opening_circle (Regions, RegionOpening, 2)
   
5. dilation_rectangle1 (RegionOpening, RegionDilation, 1, 221)
   
6. difference (RegionDilation, RegionOpening, RegionDifference)
   
7. erosion_rectangle1 (RegionDifference, RegionErosion, 5, 1)
   
8. connection (RegionErosion, ConnectedRegions)
   
9. sort_region (ConnectedRegions, SortedRegions, 'first_point', 'true', 'row')
   
10. select_obj (SortedRegions, ObjectSelected, 1)
    
11. concat_obj (RegionOpening, ObjectSelected, ObjectsConcat)
    
12. union1 (ObjectsConcat, RegionUnion)
    
13. fill_up (RegionUnion, RegionFillUp)

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吐个泡泡 发表于 2023-6-14 23:12

厉害了 大佬 向大佬学习

吐个泡泡 发表于 2023-6-14 23:12

感谢大佬指点
再问：如果是倾斜的，比如向右倾斜30度，还有招不

尝试一下先纠正到水平，再拼接：
read_image (Image, '区域定向扩张.png')
rgb1_to_gray (Image, GrayImage)

*筛选出目标区域
threshold (GrayImage, Regions, 128, 255)
opening_circle (Regions, RegionOpening, 3.5)
smallest_rectangle2 (RegionOpening, Row, Column, Phi, Length1, Length2)

*创建变换模型
vector_angle_to_rigid (Row, Column, Phi, Row, Column, 0, HomMat2D)
hom_mat2d_invert (HomMat2D, HomMat2DInvert)

*将目标区域转到水平
affine_trans_region (RegionOpening, RegionAffineTrans, HomMat2D, 'nearest_neighbor')

*获取最长的目标区域
inner_rectangle1 (RegionAffineTrans, Row1, Column1, Row2, Column2)
*根据延长需要创建矩形
gen_rectangle1 (Rectangle, Row1, Column1, Row2, Column2+80)
*上下侧各增加一个像素
dilation_rectangle1 (Rectangle, RegionDilation, 1, 3)

*与目标区域合并
union2 (RegionAffineTrans, RegionDilation, RegionUnion)
*恢复到原始方向
affine_trans_region (RegionUnion, RegionAffineTrans1, HomMat2DInvert, 'nearest_neighbor')

*查看结果
dev_display (Image)
dev_display (RegionAffineTrans1)

1. read_image (Image204850iyyp2i4hyioniyji, 'C:/Users/98223/Desktop/204850iyyp2i4hyioniyji.png')
   
2. rgb3_to_gray (Image204850iyyp2i4hyioniyji, Image204850iyyp2i4hyioniyji, Image204850iyyp2i4hyioniyji, ImageGray)
   
3. rotate_image (ImageGray, ImageRotate, -15, 'constant')
   
4. 
   
5. threshold (ImageRotate, Regions, 180, 255)
   
6. connection (Regions, ConnectedRegions)
   
7. select_shape_std (ConnectedRegions, SelectedRegions, 'max_area', 70)
   
8. smallest_rectangle2 (SelectedRegions, Row1, Column1, Phi1, Length1, Length2)
   
9. gen_rectangle2 (Rectangle, Row1, Column1, Phi1, Length1, Length2)
   
10. dilation_circle (SelectedRegions, RegionDilation, 3.5)
    
11. difference (Rectangle,RegionDilation, RegionDifference)
    
12. smallest_rectangle2 (RegionDifference, Row2, Column2, Phi2, Length11, Length21)
    
13. gen_rectangle2 (Rectangle1, Row2, Column2, Phi2, Length11, Length21)
    
14. difference (SelectedRegions, Rectangle1, RegionDifference1)
    
15. 
    
16. smallest_rectangle2 (RegionDifference1, Row3, Column3, Phi3, Length12, Length22)
    
17. gen_rectangle2 (Rectangle2, Row3, Column3, Phi3, Length12+100, Length22)
    

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是这样吗？

tojoin 发表于 2023-6-15 21:09
是这样吗？

不错不错，学习了，感谢

复制下来，保存。。。。。。

学习了

freekun139com 发表于 2023-6-15 21:08
尝试一下先纠正到水平，再拼接：
read_image (Image, '区域定向扩张.png')
rgb1_to_gray (Image, GrayImage ...

学习了1111