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Morphological Operations
| begin | |
| Converting the grayscale image to the binary image (C-I) | |
| Erosion following by dilation (C-II) | |
| Removing small holes (C-III) | |
| Finding the skeleton image (C-IV) | |
| Removing isolated pixels | |
| Removing spur pixels | |
| Finding branch points | |
| Dilating branch points | |
| Removing branch points | |
| Labeling connected components | |
| Removing small objects | |
| • Removing vessels with length less than a threshold | |
| • Removing vessels with diameter less than a threshold | |
| end |
