Testing CIELAB-based color-difference formulae using large color differences

Haisong Xu, Hirohisa Yaguchi, Satoshi Shioiri

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


Three advanced CIELAB-based color-difference formulae, CMC, CIE94, and CIEDE2000, together with the basic CIELAB equation, were tested using large color-difference visual data (maximum average size was 12 CIELAB ΔE units) produced in this study. The color-difference comparison experiment was carried out at CIE Gray and Blue centers by a panel of 6 normal color-vision observers using CRT-generated stimuli based on the psychophysical method of constant stimuli. The experimental data, processed via probit analysis, were well fitted to chromaticity ellipses with a high reliance according to the observer accuracy in terms of P F /3 measure. A detailed comparison was performed to analyze the agreement between predicted color differences from all formulae and their corresponding visual scales in all measurement planes of CIELAB space. The results show that the CIEDE2000 marginally outperformed the others at all color centers while CIE94 was the worst in original formulae or with optimized kL value, but the CIELAB performed worst when the parametric factors of kL, kC, and kH were all optimized, with the CMC always lying between these extremes.

Original languageEnglish
Pages (from-to)487-494
Number of pages8
JournalOptical Review
Issue number6
Publication statusPublished - 2001


  • Chromaticity ellipse
  • CIELAB color space
  • Color difference comparison
  • Color-difference formula
  • CRT display
  • Method of constant stimuli
  • Probit analysis
  • Suprathreshold color difference


Dive into the research topics of 'Testing CIELAB-based color-difference formulae using large color differences'. Together they form a unique fingerprint.

Cite this