Optimization of sensor response functions for colorimetry of reflective and emissive objects

Mark J. Wolski; Jan P. Allebach; Charles A. Bouman; Eric Walowit

doi:10.1117/12.173851

15 April 1994 Optimization of sensor response functions for colorimetry of reflective and emissive objects

Mark J. Wolski, Jan P. Allebach, Charles A. Bouman, Eric Walowit

Proceedings Volume 2170, Device-Independent Color Imaging; (1994) https://doi.org/10.1117/12.173851
Event: IS&T/SPIE 1994 International Symposium on Electronic Imaging: Science and Technology, 1994, San Jose, CA, United States

Abstract

Color calibration involves the assessment of a tristimulus vector describing a surface. A color calibration device must return this tristimulus vector under various surface modes and/or illuminants. For reflective surfaces, the illuminant must be known in order to assess the surface reflectance. For luminous surfaces, a pseudo-illuminant may be used to account for the adaptation state of the observer. In each separate case, the color calibration device requires a different set of color matching functions. These several sets do not span a single three-dimensional space. Ideally, a device capable of operating under k modes should have basis functions spanning a 3k dimensional space. This paper considers the selection of fewer than 3k basis functions for operation under k modes. It discusses the selection of error criteria and a strategy to minimize the error due to the reduced dimensional approximation.

Citation Download Citation

Mark J. Wolski, Jan P. Allebach, Charles A. Bouman, and Eric Walowit "Optimization of sensor response functions for colorimetry of reflective and emissive objects", Proc. SPIE 2170, Device-Independent Color Imaging, (15 April 1994); https://doi.org/10.1117/12.173851

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