3 - Architecture d'images discrètes binaires: outils géométriques

This paper deals with the presentation of geometric methods used to manipulate discrete binary images, in the aim to perform image understanding . This discussion is based on the use of two methods for representation of an image : by contour and by region . We shah discuss about filtering and methods related to the analysis of the global shape : decomposition and partitionning . We shah notice that shape analysis currently used decomposition processes into simpler entities, completed by a relational graph between the resulting primitives . We will present such a method based on the medial axis transform . This study is justified by a problem of treatment of submarine maps. To solve it, several of the presented methods have been used.