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Proceedings Paper

Gamut extension for cinema: psychophysical evaluation of the state of the art and a new algorithm
Author(s): Syed Waqas Zamir; Javier Vazquez-Corral; Marcelo Bertalmío
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Paper Abstract

Wide gamut digital display technology, in order to show its full potential in terms of colors, is creating an opportunity to develop gamut extension algorithms (GEAs). To this end, in this work we present two contributions. First we report a psychophysical evaluation of GEAs specifically for cinema using a digital cinema projector under cinematic (low ambient light) conditions; to the best of our knowledge this is the first evaluation of this kind reported in the literature. Second, we propose a new GEA by introducing simple but key modifications to the algorithm of Zamir et al. This new algorithm performs well in terms of skin tones and memory colors, with results that look natural and which are free from artifacts.

Paper Details

Date Published: 17 March 2015
PDF: 12 pages
Proc. SPIE 9394, Human Vision and Electronic Imaging XX, 93940U (17 March 2015); doi: 10.1117/12.2081152
Show Author Affiliations
Syed Waqas Zamir, Univ. Pompeu Fabra (Spain)
Javier Vazquez-Corral, Univ. Pompeu Fabra (Spain)
Marcelo Bertalmío, Univ. Pompeu Fabra (Spain)

Published in SPIE Proceedings Vol. 9394:
Human Vision and Electronic Imaging XX
Bernice E. Rogowitz; Thrasyvoulos N. Pappas; Huib de Ridder, Editor(s)

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