Discrimination of Old Document Images Using Their Style

Based on the principle described by Pareti et al. in [1], [2], and by Chouaib et al. in [3], this paper proposes to combine the use of the Zipf law and the use of bag of patterns for the implementation of a document indexing processing scheme. Contrarily to these two mentioned approaches, we retain the most important patterns based on the TF-IDF criteria, and the pattern selection is local. This paper presents the different stages of our indexing process, as well as their application to historical documents. Results on comlex images are given, illustrated and discussed.