TY - JOUR A1 - Witt, Klaus A1 - Cui, G. A1 - Luo, M.R. A1 - Rigg, B. A1 - Roesler, G. T1 - Uniform Colour Spaces Based on the DIN99 Colour-Difference Formula JF - Color research and application N2 - Several colour-difference formulas such as CMC, CIE94, and CIEDE2000 have been developed by modifying CIELAB. These formulas give much better fits for experimental data based on small colour differences than does CIELAB. None of these has an associated uniform colour space (UCS). The need for a UCS is demonstrated by the widespread use of the a*b* diagram despite the lack of uniformity. This article describes the development of formulas, with the same basic structure as the DIN99 formula, that predict the experimental data sets better than do the CMC and CIE94 colour-difference formulas and only slightly worse than CIEDE2000 (which was optimized on the experimental data). However, these formulas all have an associated UCS. The spaces are similar in form to L*a*b*. © 2002 Wiley Periodicals, Inc. Col Res Appl, 27, 282-290, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). KW - DIN99-Farbabstandsformel KW - Uniform colour space KW - Colour-difference metrics KW - Colour discrimination ellipses PY - 2002 DO - https://doi.org/10.1002/col.10066 SN - 0361-2317 SN - 1520-6378 VL - 27 IS - 4 SP - 282 EP - 290 PB - Wiley CY - New York, NY AN - OPUS4-1417 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -