Abstract: We present in this paper an approach to the analysis of the pictorial content of artistic line-drawings. The pictorial content is the combination of the stylistic content and of the visual features of the represented subject. This paper focuses on the pictorial content hold by line strokes in line-drawings. To this aim, we propose a parameterfree method to detect the hierarchical set of stroke contours. This structure allows to estimate the radius of the drawing tool that has been used. This information then efficiently tunes several methods to extract strokes curvature information, endpoints, stroke junctions and corners. The efficiency of the proposed methods is illustrated with several experiments.