Global discrimination of graphic styles

Abstract

Discrimination between graphical drawings is a difficult problem, It can be considered at different levels according to the applications, details can be observed or more globally what could be called the style. Here we are concerned with a global view of initial letters extracted from early renaissance printed documents. We are going to present a new method to index and classify ornamental letters in ancient books. We show how the Zipf law, originally used in mono-dimensional domains can be adapted to the image domain. We use it as a model to characterize the distribution of patterns occurring in these special drawings that are initial letters. Based on this model some new features are extracted and we show their efficiency for style discrimination. © Springer-Verlag Berlin Heidelberg 2006.