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About this paper
Fabian M. Schaller, Jenny Wagner, Sebastian C. Kapfer
papaya2 provides higher-order shape descriptors for polygons, grayscale images, and point patterns. For point patterns, it constructs Voronoi cells and measures directional features of their boundaries using irreducible Minkowski tensors. In one example, the map highlights a hexagonal cluster and the cell histogram peaks at q₆ = 1, associated with ideal hexagonal cells; this is not a general detection test.
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