HALFTONE SCREEN PRODUCING APPARATUS, PRINT CONTROLLING APPARATUS, IMAGE FORMING APPARATUS, METHOD OF PRODUCING HALFTONE SCREEN, METHOD OF CONTROLLING PRINTING, METHOD OF FORMING IMAGE, AND COMPUTER-READABLE RECORDING MEDIUM

摘要

A halftone screen producing apparatus is provided. The halftone screen producing apparatus includes: an input unit to receive screen information, a dot center arrangement unit to arrange dot centers within a screen based on the screen information, a Voronoi calculation unit to calculate a Voronoi value for each dot within the screen in which the dot centers are arranged, a filter calculation unit to calculate a filter value for each dot within the screen in which the dot centers are arranged, and a dot value setting unit to set a dot value within the screen based on the calculated Voronoi value and the calculated filter value.