Research on large color difference evaluation using printed samples

Author

Huang, Min ; Liu, Haoxue ; Cui, Guihua ; Luo, M. Ronnier

Author_Institution

Sch. of Printing & Packing Eng., Beijing Inst. of Graphic Commun., Beijing, China

Volume

4

fYear

2011

fDate

15-17 Oct. 2011

Firstpage

1753

Lastpage

1756

Abstract

A grey-scale psychophysical experiment was carried out for evaluating color differences using printed color patches. In total, 100 pairs of printed samples were prepared with an average ΔE*_ab of 13.8 units. Each pair was assessed 60 times by a panel of 20 normal color vision observers. The visual results were used to test the existing color-difference formulae. The results showed that all formulae gave quite satisfactory performance except OSA-Ep-Gu, which is the formula for calculating the magnitude of small-medium color difference. The optimized k_L values were used to compare with the medium color difference (MCD) of the earlier studies. The results showed that they agreed well with each other.

Keywords

image colour analysis; color difference formula; color vision observer; large color difference evaluation; medium color difference; printed color patch; small-medium color difference; Color; Distance measurement; Image color analysis; Observers; Stress; Substrates; Visualization; Gloss; Gray-scale; Large Color Difference; Printed samples;

fLanguage

English

Publisher

ieee

Conference_Titel

Image and Signal Processing (CISP), 2011 4th International Congress on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-9304-3

Type

conf

DOI

10.1109/CISP.2011.6100543

Filename

6100543