Research on large color difference evaluation using printed samples
- Resource Type
- Conference
- Authors
- Huang, Min; Liu, Haoxue; Cui, Guihua; Luo, M. Ronnier
- Source
- 2011 4th International Congress on Image and Signal Processing Image and Signal Processing (CISP), 2011 4th International Congress on. 4:1753-1756 Oct, 2011
- Subject
- Signal Processing and Analysis
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Image color analysis
Color
Observers
Visualization
Stress
Substrates
Distance measurement
Large Color Difference
Gray-scale
Printed samples
Gloss
- Language
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.