%0 Conference Proceedings
%4 sid.inpe.br/sibgrapi/2012/10.18.19.36
%2 sid.inpe.br/sibgrapi/2012/10.18.19.36.18
%@isbn 978-85-7669-270-6
%T Space filling curve dither with adaptive clustering
%D 1992
%A Velho, Luiz Carlos Pacheco Rodrigues,
%A Gomes, Jonas de Miranda,
%@affiliation Instituto de Matemática Pura e Aplicada (IMPA)
%@affiliation University of Toronto
%E Câmara, Gilberto,
%E Gomes, Jonas de Miranda,
%B Simpósio Brasileiro de Computação Gráfica e Processamento de Imagens, 5 (SIBGRAPI)
%C Águas de Lindóia, SP, Brazil
%8 10-12 Nov. 1992
%I Sociedade Brasileira de Computação
%J Porto Alegre
%V 1
%P 1-9
%S Anais
%K electronic printing, digital halftoning, dithering algorithms, space filling curves, adaptive clustering.
%X In this paper we investigate the problem of varying the of dots in digital halftoning processes. We show that the dot size is the main factor determining the tradeoff between tonal and spatial resolution in the context of dithering algorithms. In particular, we extend the dither with space filling curves method, introduced in (Velho & Gomes, 1991), to change the size of pixel clusters according to local characteristics of the image. This makes possible to achieve optimal rendition of gray shades while preserving image details.
%9 Rendering
%@language en
%3 1 Space Filling curve dither with adaptive clustering.pdf