From Sigma - Delta modulation to digital halftoning of images
- 1 January 1991
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 2805-2808 vol.4
- https://doi.org/10.1109/icassp.1991.150985
Abstract
The author present his halftoning technique as an analytical 2-D extension of Sigma - Delta modulation, which is proven to feature optimal characteristics for the halftoning problem. A particular effort is devoted to transforming the sequential expression of Sigma - Delta modulation into a parallel and dimension-independent expression. This allows a precise understanding of the halftoning action in the frequential domain, while explaining the good experimental performance of the method.<>Keywords
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