ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILT..FIROMKCYALTRBGCZEEHUPLSKBAHRIS......RS......................JDIM360 Ver 2.15 (14 Jul 2008) - 1999001/0This application was filed on 15-10-2007 as a divisional application to the application mentioned under INID code 62.1873720CORRECTED EUROPEAN PATENT APPLICATIONA8A220091028W1deBemerkungenenRemarksfrRemarquesdeBibliographieenBibliographyfrBibliographieEP07118519.3200504152007101520081124enenen56403320040421US83165620040423US200910282009442008010220080120091028200944G06T 9/00 20060101AFI20071115BHEP G06T 9/40 20060101ALI20071115BHEP deVerfahren, System und Softwareprodukt zur FarbbildcodierungenMethod, system and software product for color image encodingfrProcédé, système et produit logiciel permettant le codage d'une image couleur405734230.5174543920050415Slipstream Data, Inc.071823101082-1143550 Parkside Drive, Unit A8Waterloo, ON N2L 5V4CAATBEBGCHCYCZDEDKEEESFIFRGBGRHUIEISITLILTLUMCNLPLPTROSESISKTRYang, En-hui 203 Beavor Creek RoadWaterloo, Ontario N2T 2R8CAZeng, Jianfen Zhongshan University P.o. Box 950Zhongshan GuangdongCNRickard, David John09235291Ipulse 26 Mallinson RoadLondon SW11 1BPGBATBEBGCHCYCZDEDKEEESFIFRGBGRHUIEISITLILTLUMCNLPLPTROSESISKTRAL20071015BA20071015HR20071015MK20071015RS2007101520080416200816

The present invention relates to a method and system and computer program product for deriving a new index sequence representing a pixel mapping and a new output function representing a colour palette applying a soft decision optimization process to a new digitized colour image derived from an original digitized colour image both defined on n pixels, wherein the original digitized colour image is provided by N distinct colours being allocated to the n pixels, the new digitized colour image is provided by M distinct colours being allocated to the n pixels, the new index sequence has n index members for representing the n pixels and the new output function is for mapping the n index members to the M colours.