<XML><RECORDS><RECORD><REFERENCE_TYPE>3</REFERENCE_TYPE><REFNUM>5930</REFNUM><AUTHORS><AUTHOR>Patterson, J.W.</AUTHOR><AUTHOR> Todd, S.J.P.</AUTHOR></AUTHORS><YEAR>1994</YEAR><TITLE>Digital Half-Toning Using Dot Modelling</TITLE><PLACE_PUBLISHED>Proceedings of the EUROGRAPHICS UK conference 1994</PLACE_PUBLISHED><PUBLISHER>Oxford University Press</PUBLISHER><LABEL>Patterson:1994:5930</LABEL><KEYWORDS><KEYWORD>Floyd-Steinberg</KEYWORD></KEYWORDS<ABSTRACT>We describe a variant of the Floyd-Steinberg error-duffusion half-toning algorithm which makes use of a model for determining the contamination of adjacent cells by irregularly-shaped dots. The paper shows how to calculate the amounts for correcting the error calculation which differs for each of the sixteen combinations of the four adjacent bit settings already visited. The paper also describes how to determine the model parameters for an 'unknown' printer using a set of grey-scale ramps. The resultant images look considerably better than those for uncorrected error calculations.</ABSTRACT></RECORD></RECORDS></XML>