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Proceedings Paper

No-reference metrics for demosaicing
Author(s): Francesca Gasparini; Mirko Guarnera; Fabrizio Marini; Raimondo Schettini
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Paper Abstract

The present work concerns the development of a no-reference demosaicing quality metric. The demosaicing operation converts a raw image acquired with a single sensor array, overlaid with a color filter array, into a full-color image. The most prominent artifact generated by demosaicing algorithms is called zipper. In this work we propose an algorithm to identify these patterns and measure their visibility in order to estimate the perceived quality of rendered images. We have conducted extensive subjective experiments, and we have determined the relationships between subjective scores and the proposed measure to obtain a reliable no-reference metric.

Paper Details

Date Published: 18 January 2010
PDF: 9 pages
Proc. SPIE 7529, Image Quality and System Performance VII, 752911 (18 January 2010); doi: 10.1117/12.839952
Show Author Affiliations
Francesca Gasparini, Univ. degli Studi di Milano-Bicocca (Italy)
Mirko Guarnera, STMicroelectronics (Italy)
Fabrizio Marini, Univ. degli Studi di Milano-Bicocca (Italy)
Raimondo Schettini, Univ. degli Studi di Milano-Bicocca (Italy)

Published in SPIE Proceedings Vol. 7529:
Image Quality and System Performance VII
Susan P. Farnand; Frans Gaykema, Editor(s)

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