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This paper employs computer colour generation,and match prediction systems and aims tofind the most critical change of dye concentration corresponding to changes of Hue,or Chroma,orLightness of 1 unit just visible colour difference,thus investigating the required accuracy level fordyeing dispensing.This leads to the selection of one critical colour-difference dimension of threefrom CMC (1:c) measurement.The results reveal that the concentration change in dye dispensing ismost critical for change of Hue in a computer controlled system.The formula describing the rela-tionship Of △E and △H in CMC (2:1) measurement is selected for further investigation. 相似文献
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