Title :
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
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 kL 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;
Conference_Titel :
Image and Signal Processing (CISP), 2011 4th International Congress on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-9304-3
DOI :
10.1109/CISP.2011.6100543
