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Published on: February 29, 2012
Measurement of the relationship between perceived and computed color differences
Pedro A García1, Rafael Huertas, Manuel Melgosa
1Departamento de Estadística e Investigación Operativa, Facultad de Ciencias, Universidad de Granada, Spain.
Abstract:
Using simulated data sets, we have analyzed some mathematical properties of different statistical measurements that have been employed in previous literature to test the performance of different color-difference formulas. Specifically, the properties of the combined index PF/3 (performance factor obtained as average of three terms), widely employed in current literature, have been considered. A new index named standardized residual sum of squares (STRESS), employed in multidimensional scaling techniques, is recommended. The main difference between PF/3 and STRESS is that the latter is simpler and allows inferences on the statistical significance of two color-difference formulas with respect to a given set of visual data.
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