CIE color difference formulae

Target entity: CIE color difference formulae
Context triple: [International Commission on Illumination, definesStandard, CIE color difference formulae]

• A. CIE 1931 XYZ
  CIE 1931 XYZ is a foundational color space defined by the CIE that models human color perception using three tristimulus values (X, Y, Z) and underpins much of modern color science and colorimetry.
• B. Ostwald color system
  The Ostwald color system is a color classification and harmony model developed by chemist Wilhelm Ostwald that organizes colors based on their psychological perception and mixture relationships.
• C. Chronochrome color system
  The Chronochrome color system was an early motion picture color process developed by French film pioneer Léon Gaumont to produce naturalistic color images using a multi-lens, additive method.
• D. Modern Chromatics, with Applications to Art and Industry
  "Modern Chromatics, with Applications to Art and Industry" is a foundational 19th-century treatise on color theory that bridges scientific principles of color perception with practical guidance for artists and industrial designers.
• E. CIE standard illuminant D65
  CIE standard illuminant D65 is a standardized representation of average daylight with a correlated color temperature of about 6500 K, widely used as a reference white point in colorimetry and imaging systems.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: CIE color difference formulae
Target entity description: CIE color difference formulae are standardized mathematical models used to quantify perceived differences between colors in a way that aligns with human visual perception.

• A. CIE 1931 XYZ
  CIE 1931 XYZ is a foundational color space defined by the CIE that models human color perception using three tristimulus values (X, Y, Z) and underpins much of modern color science and colorimetry.
• B. Ostwald color system
  The Ostwald color system is a color classification and harmony model developed by chemist Wilhelm Ostwald that organizes colors based on their psychological perception and mixture relationships.
• C. Chronochrome color system
  The Chronochrome color system was an early motion picture color process developed by French film pioneer Léon Gaumont to produce naturalistic color images using a multi-lens, additive method.
• D. Modern Chromatics, with Applications to Art and Industry
  "Modern Chromatics, with Applications to Art and Industry" is a foundational 19th-century treatise on color theory that bridges scientific principles of color perception with practical guidance for artists and industrial designers.
• E. CIE standard illuminant D65
  CIE standard illuminant D65 is a standardized representation of average daylight with a correlated color temperature of about 6500 K, widely used as a reference white point in colorimetry and imaging systems.
• F. None of above. chosen