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  • Research Article
  • Open Access

Quantification and Standardized Description of Color Vision Deficiency Caused by Anomalous Trichromats—Part II: Modeling and Color Compensation

EURASIP Journal on Image and Video Processing20072008:246014

  • Received: 8 October 2007
  • Accepted: 22 December 2007
  • Published:


A color compensation scheme has been developed to enhance the perception of people with color vision deficiency (CVD) and for people suffering from anomalous trichromacy. It is operated within the MPEG-21 Multimedia Framework, which provides a standardized description of CVD. The basic idea behind the proposed color compensation consists of simulating the path of human color perception. As such, compensated color is realized by relying on the spectral cone sensitivities of the human eye and the spectral emission functions of the display device. For quantified color compensation, the spectral sensitivity of anomalous cones has been modeled according to the deficiency degree of the standardized CVD description. The latter is based on the error score of a computerized hue test (CHT), developed in Part I of our study. Given the anomalous cone spectra, the reduction of error score on the CHT after color compensation was measured in each deficiency degree. The quantitative relationship of color compensation with the error score is linearly regressed, based on the deficiency degree with the least error score after color compensation as well as the error score before color compensation.


  • Spectral Sensitivity
  • Compensation Scheme
  • Spectral Emission
  • Error Score
  • Color Perception

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Authors’ Affiliations

Image and Video Systems Laboratory, Information and Communications University, Munji 119, Yuseong, Daejeon, 305-732, South Korea
Deptartment of Ophthalmology, University of California at Irvine, Irvine, CA 92697-4375, USA
Department of Ophthalmology, Seoul National University Hospital, 28 Yongon-Dong, Chongno-Gu, Seoul, 110-744, South Korea


© Seungji Yang et al. 2008

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.