SymFD can be used to detect features such as edges, ridges, and blobs in 2D images. Furthermore, SymFD supports the characterization of such features in terms of tangent directions (edges, and ridges), curvature (edges, and ridges) and widths (ridges, and blobs).
R. Reisenhofer, and Emily J. King. "Edge, Ridge, and Blob Detection with Symmetric Molecules". To appear in SIAM Journal on Imaging Sciences.
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