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<p><b>Abstract</b>—In a recent paper on morphological image segmentation [<ref rid="bibi07621" type="bib">1</ref>], Najman and Schmitt introduce the powerful concept of edge dynamics. In this communication, we show that the method that they propose to compute the edge dynamics gives erroneous results for certain spatial configurations, and we propose a new algorithm which always yields correct edge dynamics.</p>
Hierarchical segmentation, watershed algorithm, basin dynamics, edge dynamics.

R. Fjørtoft, P. Marthon, E. Cubero-Castan and C. Lemaréchal, "Comments on "Geodesic Saliency of Watershed Contours and Hierarchical Segmentation"," in IEEE Transactions on Pattern Analysis & Machine Intelligence, vol. 20, no. , pp. 762-763, 1998.
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