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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 31, Iss. 6 — Jun. 1, 2014
  • pp: 1328–1336

Performance of select color-difference formulas in the blue region

R. Shamey, R. Cao, T. Tomasino, S. S. H. Zaidy, K. Iqbal, J. Lin, and S. G. Lee  »View Author Affiliations


JOSA A, Vol. 31, Issue 6, pp. 1328-1336 (2014)
http://dx.doi.org/10.1364/JOSAA.31.001328


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Abstract

The main objective of this work was to test the performance of major formulas for assessment of small suprathreshold color differences in the blue region. The models examined include CIELAB color space based equations, including CIELAB, CIE94, CIEDE2000, CMC ( l : c ), BFD ( l : c ), and formulas based on more uniform color spaces, such as DIN99d, CAM02-SCD, CAM02-UCS, OSA-GP, and OSA-Eu in comparison against data obtained via visual assessments. For this purpose, a dataset around the CIE high-chroma blue color center, hereafter called NCSU-B2, was developed. The NCSU-B2 dataset comprised 65 textile substrates and a standard, with a mean Δ E ab * color difference of 2.72, ranging from 0.54–5.72. Samples were visually assessed by 26 subjects against the reference gray scale in three separate trials with at least 24 h between assessments. A total of 5070 assessments were obtained. The standardized residual sum of squares (STRESS) index was used to examine the performance of various formulas for this dataset, as well as a previously developed NCSU-B1 low-chroma blue dataset [Color Res. Appl. 36, 27, 2011], and blue centers from other established visual datasets. Results show that formulas based on more recent uniform color spaces provide better agreement with perceptual data compared with models based on CIELAB space.

© 2014 Optical Society of America

OCIS Codes
(330.1690) Vision, color, and visual optics : Color
(330.1730) Vision, color, and visual optics : Colorimetry

ToC Category:
Vision, Color, and Visual Optics

History
Original Manuscript: December 23, 2013
Revised Manuscript: March 23, 2014
Manuscript Accepted: April 8, 2014
Published: May 29, 2014

Virtual Issues
Vol. 9, Iss. 8 Virtual Journal for Biomedical Optics

Citation
R. Shamey, R. Cao, T. Tomasino, S. S. H. Zaidy, K. Iqbal, J. Lin, and S. G. Lee, "Performance of select color-difference formulas in the blue region," J. Opt. Soc. Am. A 31, 1328-1336 (2014)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-31-6-1328

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