GB/T 7921-2008 《Uniform color space and color difference formula》 Related products

This standard specifies the calculation methods and related Color difference formulas for the CIE 1976 (L * a ° b °) and CIE 1976 (L * u ° v °) color spaces, including the CIEDE2000 Color difference formula. The standard applies to the representation of object Color and Light source Color, as well as the calculation and representation of color differences. The paper describes how to use these color spaces and Color difference formulas to accurately measure and evaluate Color differences to ensure color conformity and mass. The standard also includes parameter effects in color difference evaluation and recommendations for improvement in industrial color difference evaluation.