SPECIAL ISSUE: Getting Across the Border Between the Natural and the Artificial Worlds; Edited by G. Sanniti di BajaNo Access

ON THE HIERARCHICAL ASSIGNMENT TO THE FOREGROUND OF GRAY-LEVEL IMAGE SUBSETS

MARIA FRUCCI

Institute of Cybernetics "E.Caianiello", CNR, Via Campi Flegrei 34, 80078 Pozzuoli, Naples, Italy

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CARLO ARCELLI

Institute of Cybernetics "E.Caianiello", CNR, Via Campi Flegrei 34, 80078 Pozzuoli, Naples, Italy

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GABRIELLA SANNITI DI BAJA

Institute of Cybernetics "E.Caianiello", CNR, Via Campi Flegrei 34, 80078 Pozzuoli, Naples, Italy

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https://doi.org/10.1142/S0218001406005034Cited by:5 (Source: Crossref)

Abstract

We present a method to assign to either the foreground or the background the regions into which a gray-level image is partitioned by watershed transformation. Our method is inspired by visual perception in the sense that the border separating any foreground component from the background is detected in correspondence with the locally maximal gray-level changes through the image. The method is implemented as consisting of three steps. The first two steps perform a basic assignment of the regions, while the remaining step examines again some regions tentatively assigned to the background during the second step and possibly changes their status. A feature of the method is that a hierarchical ranking of the regions assigned to the foreground is also accomplished.

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