Implantation d'application d'aide de décision avec un serveur temps réel pour images dégradées via des moyens de communication

Abstract

Scanning of old documents opens new research perspectives such as the restoration of degraded documents and optical character recognition where the image binarization process is required as a pretreatment step. This thesis deals with the binarization of degraded documents via means of communication according to two approaches. The first approach presents a new technique for binarisation of degraded documents. In which we introduced a new technique based on the median filter for the estimation of the background. For the second approach, we present the implementation of the image binarization algorithm using the Otsu method on reconfigurable architecture (FPGA)