| 摘要 |
PROBLEM TO BE SOLVED: To provide a colorimeter configured to have multiple light sensing capabilities to provide higher accuracy in measurements of the primaries of a human standard observer-based color space.SOLUTION: A color space (target color space) must have a characteristic of two chromaticity coordinates and an achromatic primary like CIELAB, CIELUV or xyY in CIE 1931. Calibration of a device includes training with a set of calibration illuminants. A first set Mof calibration factors yields intensity of primaries optimized in terms of chromaticity, while a second set Mof calibration factors yields optimized intensity of an achromatic primary. Combination of these sets of calibration factors allows a colorimeter to deliver values of light with respect to three primaries of a human standard observer-based color space optimized in terms of chromaticity and the achromatic primary.SELECTED DRAWING: Figure 2 |
