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Computational Color Constancy using a Stereo Camera

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Chromagenic color constancy is one of the promising solutions to the color constancy problem. However, this technique requires two shots of a scene: a conventional RGB image and an additional image that is optically pre-filtered using a chromagenic filter. This severely limits the usefulness of chromagenic based color constancy algorithms to static scenes only. In this paper we propose a solution to this with the use of a digital stereo camera, where we place the chromagenic filter in front of one of the lenses of the stereo camera. This allows capturing two images of a scene, one unfiltered and one filtered, in one shot. An illuminant can then be estimated using chromagenic based illumination estimation methods. Since more and more digital stereo cameras are being commercially available, the system can be built quite easily, and being a one shot solution, it is a practical computational color constancy method that could be useful in many applications. Experiments with a modern commercial digital stereo camera show promising results.
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Document Type: Research Article

Publication date: January 1, 2012

More about this publication?
  • Started in 2002 and merged with the Color and Imaging Conference (CIC) in 2014, CGIV covered a wide range of topics related to colour and visual information, including color science, computational color, color in computer graphics, color reproduction, volor vision/psychophysics, color image quality, color image processing, and multispectral color science. Drawing papers from researchers, scientists, and engineers worldwide, DGIV offered attendees a unique experience to share with colleagues in industry and academic, and on national and international standards committees. Held every year in Europe, DGIV papers were more academic in their focus and had high student participation rates.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual papers for details.

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