Discrete convexity: Definition, parametrization, and compatibility with continuous convexity

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A definition of convexity in discrete spaces such as Z2 is considered. This definition has a great similarity with that used for continuous convex figures in R2. We establish a method to describe the measurement of convexity. The convex hull of a connected component S will be defined by the intersection property of the convex connected components containing S. In the last part we prove the compatibility of this definition, applied to discrete components obtained by the sampling of continuous figures, with the definition of continuous convexity on R2.

References (9)

  • J.M. Chassery

    Connectivity and consecutivity in digital pictures

    Computer Graphics and Image Processing

    (1979)
  • A. Rosenfeld et al.
  • J.M. Chassery et al.

    Topologies on Discrete Spaces

  • J.M. Chassery, Convexité et enveloppe convexe dans Z2, Seminaire Analyse Numérique, No, 297, IMAG, Grenoble,...
There are more references available in the full text version of this article.

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