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Digital Level Layers for Digital Curve Decomposition and Vectorization

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Academic year: 2021

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Figure 2: Morphological approach. Several structuring elements E can be chosen. The most usual ones are the balls according to classical norms or a cross in the Bresenham approach
Figure 4: Analytical approach. We relax the equation of the ellipse f (x) = 0 in a double inequality
Figure 5: A pathological case: whatever the method, the number of connected components of the complementary of T is not preserved for any shapes
Figure 6: Advantages and drawbacks of each approach.
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