Multivalued data enters and is converted into binary (two-valued) data in accordance with plural types of binary-conversion methods. Among the plural types of data obtained by such binary conversion, one is adopted as the object of coding and is coded. The object of coding to be stored in a memory is...http://www.google.es/patents/US5245444?utm_source=gb-gplus-sharePatente US5245444 - Image reproduction using error diffusion or dither matrix
Image reproduction using error diffusion or dither matrix
