Architecture of discrete binary images geometrical tools

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.On traite les 2 modes de représentation utilisés pour une image, à savoir la représentation par contour et la représentation par région. Procédé de filtrage, de description ou de décomposition de formes en vue d'une interprétation locale ou globale des objets représenté