TY - JOUR JF - Acta cybernetica Y1 - 2018/// AV - public CY - Szeged A1 - Palágyi Kálmán UR - http://acta.bibl.u-szeged.hu/55687/ IS - 3 TI - How sufficient conditions are related for topology-preserving reductions VL - 23 EP - 958 ID - acta55687 SN - 0324-721X SP - 939 KW - Topológia N2 - A crucial issue in digital topology is to ensure topology preservation for reductions acting on binary pictures (i.e., operators that never change a white point to black one). Some sufficient conditions for topology-preserving reductions have been proposed for pictures on the three possible regular partitionings of the plane (i.e., the triangular, the square, and the hexagonal grids). In this paper, the relationships among these conditions are stated. N1 - Bibliogr.: p. 956-958. ; összefoglalás angol nyelven ER -