Freitas, Pedro Garcia, Farias, Mylene C. Q., Araújo, Aletéia P. F. de.
In this paper, we present a simple and fast inverse halftoning algorithm, targeted at reconstructing halftoned images generated using dispersed-dot ordered dithering algorithms. The proposed algorithm uses a simple set of linear filters combined with a stochastic model in order to predict the best intensity values for the binary image pixels. The algorithm produces images with a better perceptual quality than the available algorithms in the literature, preserving most of the fine details of the original gray-level image. It has a high performance, which can be further improved with the use of parallelization techniques.
http://sibgrapi.sid.inpe.br/rep/sid.inpe.br/sibgrapi/2011/06.29.23.44?mirror=sid.inpe.br/banon/2001/03.30.15.38.24&metadatarepository=sid.inpe.br/sibgrapi/2011/06.29.23.44.16Caso o link acima esteja inválido, faça uma busca pelo texto completo na Web: Buscar na Web