Direct Pattern Control Halftoning of Neugebauer Primaries.[2017][IEEE Trans Image Process][10.1109tip.2017.2713939]

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1、Thisarticlehasbeenacceptedforpublicationinafutureissueofthisjournal,buthasnotbeenfullyedited.Contentmaychangepriortofinalpublication.Citationinformation:DOI10.1109/TIP.2017.2713939,IEEETransactionsonImageProcessing>REPLACETHISLINEWITHYOURPAPERIDENTIFICATIONNUMBER(DOUBLE-CLICKHERETOEDIT)<1DirectPa

2、tternControlHalftoningofNeugebauerPrimariesPeterMorovič,JánMorovič,JayGondekandRobertUlichneydiffusionalgorithms[21,22].Here,inthesimplercaseofaAbstract—Halftoningisakeystageofanyprintingimagesinglecolorant,multiplelevelsareerror-diffusedsuchthattheprocessingpipeline.Withcolorant-channelapproache

3、s,akeyresultingcombinedpatterninvolvingmultiplelevelsofachallengeformatrix-basedhalftoningistheco-optimizationofthecoloranthasthedesiredproperties(e.g.,blue-noise).Thismatricesusedforindividualcolorants,whichbecomesincreasinglyinvolvesasequentialprocessappliedtoanarea-coveragecomplexandover-const

4、rainedasthenumberofcolorantsincreases.Bothchoicesofscreenangles(inclustered-dotcases)orstructures,orderedhierarchyoftones,wherethetonewithhighestandcontroloverhowindividualmatricesrelatetoeachotherandcoverageiserrordiffusedfirstandsubsequenttonesofresultinover-versusside-by-sideprintingofthecolor

5、ants,imposedecreasingcoverageareerror-diffusedoverthelocationsusedchallengingrestrictions.Thesolutionpresentedinthispaperreliesbyhigher-coveragelevels.TheapproachalsoextendstoonthebenefitsofaHalftoneAreaNeugebauerSeparation(HANS)multiplecolorantsandtheircombinations,processedinorderofpipeline,whe

6、relocalNeugebauerPrimaryuseisspecifiedateachdecreasingareacoverageandtomulti-scaleprocessing[22].pixelandwherehalftoningcanbeperformedusingasinglematrix,regardlessofthenumberofcolorants.Theprovablycompleteplane-Whilesuchapproachesoffersomecontrolovercolorantdependenceoftheresultinghalftoneswillbe

7、presentedamongthecombinations,theyareconstrainedbyoperatinginaspecificsolution’sbenefits.orderofdecreasingcoverageandbydiffusingerrorbetweenat-IndexTerms—Digitalprinting,Imageprocessingpixelcolorantcombinations.printer