Chinese Optics Letters, Volume. 7, Issue 8, 08744(2009)

Estimating color appearance of pearlescent bottles using digital camera

Lingjin Fu1,2, Haisong Xu1, M. Ronnier2, Guihua Cui2, and Wei Ji2
Author Affiliations
  • 1State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China
  • 2Department of Colour Science, University of Leeds, Leeds LS2 9JT, UK
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    Pearlescent coatings become highly popular to the modern generation of color rendering materials due to their unique color effect. However, it is quite challenging to evaluate its color appearance by traditional color measurement. A low-cost camera is a highly efficient device for multi-geometry color appearance estimation for pearlescent bottles, which has been achieved through the camera characterization, sample image capturing, and then mathematical transforming from RGB (red, green, and blue) values to color appearance attributes based on the color appearance model of CIECAM02. A tele-spectroradiometer for physical measurement together with visual assessment is applied for comparison with the camera method to evaluate the accuracy of camera predictions and discuss the applicability of CIECAM02. The experimental results indicate that the camera data have strong correlation with the physical measurement and also fit well with visual data except for a slight slope shift existing in lightness due to a divinable psychophysical magnitude variation for spatial-dependent color samples. Hence it is feasible to estimate the color appearance of pearlescent bottles using a digital camera.

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    Lingjin Fu, Haisong Xu, M. Ronnier, Guihua Cui, Wei Ji. Estimating color appearance of pearlescent bottles using digital camera[J]. Chinese Optics Letters, 2009, 7(8): 08744

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    Paper Information

    Received: Oct. 30, 2008

    Accepted: --

    Published Online: Aug. 17, 2009

    The Author Email:

    DOI:10.3788/COL20090708.0744

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