Frontiers of Electrical and Electronic Engineering >
Development of color density concept with color difference formulas in respect to human vision system
Received date: 30 Aug 2010
Accepted date: 24 Feb 2011
Published date: 05 Jun 2011
Copyright
The aims of this study are to develop the color density concept and to propose the color density based color difference formulas. The color density is defined using the metric coefficients that are based on the discrimination ellipses and the locations of the colors in the color space. The ellipse sets are the MacAdam ellipses in the CIE 1931 xy-chromaticity diagram and the chromaticity-discrimination ellipses in the CIELAB space. The latter set was originally used to develop the CIEDE2000 color difference formula. The color difference can be calculated from the color density for the two colors under consideration. As a result, the color density represents the perceived color difference more accurately, and it could be used to characterize a color by a quantity attribute matching better to the perceived color difference from this color. Resulting from this, the color density concept provides simply a correction term for the estimation of the color differences. In the experiments, the line element formula and the CIEDE2000 color difference formula performed better than the color density based difference measures. The reason behind this is in the current modeling of the color density concept. The discrimination ellipses are typically described with three-dimensional data consisting of two axes, the major and the minor, and the inclination angle. The proposed color density is only a one-dimensional corrector for color differences; thus, it cannot capture all the details of the ellipse information. Still, the color density gives clearly more correct estimations to perceived color differences than Euclidean distances using directly the coordinates of the color space.
Arto KAARNA , Wei LIU , Heikki KÄLVIÄINEN . Development of color density concept with color difference formulas in respect to human vision system[J]. Frontiers of Electrical and Electronic Engineering, 2011 , 6(2) : 381 -387 . DOI: 10.1007/s11460-011-0144-0
| 1 |
MacAdam D L. Specification of small chromaticity differences. Journal of the Optical Society of America, 1943, 33(1): 27-30
|
| 2 |
Luo M R, Rigg B. Chromaticity-discrimination ellipses for surface colours. Color Research and Application, 1986, 11(1): 25-42
|
| 3 |
Wyszecki G, Stiles W S. Color Science Concept and Methods, Quantitative Data and Formulae. 2nd ed. New York: John Wiley & Sons Inc, 2000, 654-658
|
| 4 |
Luo M R, Cui G, Rigg B. The development of the CIE2000 color-difference formula: CIEDE2000. Color Research and Application, 2001, 26(5): 340-350
|
| 5 |
MacAdam D L. Metric coefficients for CIE color-difference formulas. Color Research and Application, 1985, 10(1): 45-49
|
| 6 |
von Mises R. Mechanik der Festen Körper im plastisch deformablen Zustand. Göttingen, Mathematisch-Physikalische Klasse, 1913, 4(1): 582-592
|
| 7 |
Robertson A R. CIE guidelines for coordinated research on colour differences evaluations. Color Research and Application, 1978, 3(3): 149-151
|
| 8 |
Melgosa M, Pérez M M, EIMoraghi A, Hita E. Color discrimination results from a CRT device: influence of luminance. Color Research and Application, 1999, 24(1): 38-44
|
/
| 〈 |
|
〉 |