划痕、刮痕缺陷检测

Halcom

划痕、刮痕缺陷检测：
halcon12 + win32

1. dev_update_off ()
   
2. read_image (Image, 'surface_scratch')
   
3. invert_image (Image, ImageInverted)
   
4. get_image_size (Image, Width, Height)
   
5. *
   
6. optimize_rft_speed (Width, Height, 'standard')
   
7. * Enhance the scratches by filtering in the frequency domain
   
8. gen_sin_bandpass (ImageBandpass, 0.4, 'none', 'rft', Width, Height)
   
9. rft_generic (ImageInverted, ImageFFT, 'to_freq', 'none', 'complex', Width)
   
10. convol_fft (ImageFFT, ImageBandpass, ImageConvol)
    
11. rft_generic (ImageConvol, Lines, 'from_freq', 'n', 'byte', Width)
    
12. *
    
13. * Segment the scratches by using morphology
    
14. threshold (Lines, Region, 5, 255)
    
15. connection (Region, ConnectedRegions)
    
16. select_shape (ConnectedRegions, SelectedRegions, 'area', 'and', 5, 5000)
    
17. dilation_circle (SelectedRegions, RegionDilation, 5.5)
    
18. union1 (RegionDilation, RegionUnion)
    
19. reduce_domain (Image, RegionUnion, ImageReduced)
    
20. * line_gauss线检测
    
21. lines_gauss (ImageReduced, LinesXLD, 0.8, 3, 5, 'dark', 'false', 'bar-shaped', 'false')
    
22. union_collinear_contours_xld (LinesXLD, UnionContours, 40, 3, 3, 0.2, 'attr_keep')
    
23. select_shape_xld (UnionContours, SelectedXLD, 'contlength', 'and', 15, 1000)
    
24. gen_region_contour_xld (SelectedXLD, RegionXLD, 'filled')
    
25. union1 (RegionXLD, RegionUnion)
    
26. dilation_circle (RegionUnion, RegionScratches, 10.5)
    
27. *
    
28. * Display the results
    
29. dev_set_draw ('margin')
    
30. dev_display (Image)
    
31. dev_display (RegionScratches)

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