8 February 2017 Selection of achromatic and non-neutral colors to fill lacunae in frescoes guided by a variational model of perceived contrast
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Proceedings Volume 10225, Eighth International Conference on Graphic and Image Processing (ICGIP 2016); 102251Z (2017) https://doi.org/10.1117/12.2267773
Event: Eighth International Conference on Graphic and Image Processing, 2016, Tokyo, Japan
Abstract
Many ancient paintings, in particular frescoes, have some parts ruined by time and events. Sometimes one or more non-negligible regions are completely lost, leaving a blank that is called by restaurateurs a ‘lacuna’. The general restoration philosophy adopted in these cases is to paint the interior part of the lacuna with an achromatic or non-neutral uniform color carefully selected in order to minimize its overall perception. In this paper, we present a computational model, based on a well-established variational theory of color perception, that may facilitate the job of a restaurateur by providing both achromatic and non-neutral colors which minimize the local contrast with the surrounding parts of the fresco.
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Luca Grementieri, Edoardo Provenzi, "Selection of achromatic and non-neutral colors to fill lacunae in frescoes guided by a variational model of perceived contrast", Proc. SPIE 10225, Eighth International Conference on Graphic and Image Processing (ICGIP 2016), 102251Z (8 February 2017); doi: 10.1117/12.2267773; https://doi.org/10.1117/12.2267773
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