직/편성물 염색

Recommended weightings for colorimetric calculations

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 276
Several different sets of weighting functions are, or have been, in routine use in colour-measurement system employed in industry to represent the same pairing of illuminant and observer. Exactly the same inputs to different weight-set purporting to represent the same pairing give, often significantly, different output (e.g.colour-difference reports), leading to confusion, arguments between suppliers and their customers, and loss of faith in the capabilities of systems. The extent of variation between weight-sets is exemplified by those employed, at some time, by some of the major system suppliers to represent TL84. The practical effect of these variations is examined and a recommendation is made to use the weight-sets in ASTM E308-96. The relevant content of E308-96 is summarised and means of determining whether E308-96 weights are installed in a system are given. Tables of E308-96 weighting functions for CIE illuminants A, D65 and F11 (TL84) are appended.
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