In this paper, we present a new metric to estimate the perceived difference in contrast between an original image and a reproduction. This metric, named weighted-level framework DEE (WLF-DEE), implements a multilevel filtering based on the difference of Gaussians model proposed by Tadmor and Tolhurst (2000) and the new Euclidean color difference formula in log-compressed OSA-UCS space proposed by Oleari et al. (2009). Extensive tests and analysis are presented on four different categories belonging to the well-known Tampere Image Database and on two databases developed at our institution, providing different distortions directly related to color and contrast. Comparisons in performance with other state-of-the-art metrics are also pointed out. Results promote WLF-DEE as a new stable metric for estimating the perceived magnitude of contrast between an original and a reproduction.

Multi-level contrast filtering in image difference metrics / G., Simone; M., Pedersen; I., Farup; Oleari, Claudio. - In: EURASIP JOURNAL ON IMAGE AND VIDEO PROCESSING. - ISSN 1687-5281. - 2013:39:(2013). [10.1186/1687-5281-2013-39]

Multi-level contrast filtering in image difference metrics

OLEARI, Claudio
2013-01-01

Abstract

In this paper, we present a new metric to estimate the perceived difference in contrast between an original image and a reproduction. This metric, named weighted-level framework DEE (WLF-DEE), implements a multilevel filtering based on the difference of Gaussians model proposed by Tadmor and Tolhurst (2000) and the new Euclidean color difference formula in log-compressed OSA-UCS space proposed by Oleari et al. (2009). Extensive tests and analysis are presented on four different categories belonging to the well-known Tampere Image Database and on two databases developed at our institution, providing different distortions directly related to color and contrast. Comparisons in performance with other state-of-the-art metrics are also pointed out. Results promote WLF-DEE as a new stable metric for estimating the perceived magnitude of contrast between an original and a reproduction.
2013
Multi-level contrast filtering in image difference metrics / G., Simone; M., Pedersen; I., Farup; Oleari, Claudio. - In: EURASIP JOURNAL ON IMAGE AND VIDEO PROCESSING. - ISSN 1687-5281. - 2013:39:(2013). [10.1186/1687-5281-2013-39]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2739902
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