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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 36 — Dec. 20, 2004
  • pp: 6523–6535

3CCD camera’s capability for measuring color differences: experiment in the nearly neutral region

María S. Millán, Edison Valencia, and Montse Corbalán  »View Author Affiliations


Applied Optics, Vol. 43, Issue 36, pp. 6523-6535 (2004)
http://dx.doi.org/10.1364/AO.43.006523


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Abstract

A method to assess the discrimination capability of a camera to measure small color differences is proposed. The method helps to fix the working conditions of the camera and analyzes the reliability of the measurements through comparison with a reference instrument. Attention is paid to the camera’s performance in the nearly neutral region of color space. The color differences are calculated using the Commission Internationale de l’Eclairage L* a* b* (CIELAB) ΔE ab * and CIE 2000 color-difference formula metrics. The Sony DX-9100P 3CCD camera results are very close to those obtained by the Photo Research PR-715 spectroradiometer. Their absolute discrepancy is lower than the suprathreshold of visual discrimination (0.887 CIELAB unit).

© 2004 Optical Society of America

OCIS Codes
(040.0040) Detectors : Detectors
(040.1490) Detectors : Cameras
(120.5240) Instrumentation, measurement, and metrology : Photometry
(330.1710) Vision, color, and visual optics : Color, measurement

History
Original Manuscript: December 15, 2003
Revised Manuscript: June 4, 2004
Manuscript Accepted: July 22, 2004
Published: December 20, 2004

Citation
María S. Millán, Edison Valencia, and Montse Corbalán, "3CCD camera’s capability for measuring color differences: experiment in the nearly neutral region," Appl. Opt. 43, 6523-6535 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-36-6523


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