Fig. 6From: Spectral information to get beyond color in the analysis of water-soluble varnish degradationDistributions of L*, a*, b* value for unvarnished (left column) and varnished (right column), before (red) and after (blue) WI, for EW varnish (top row) and GA varnish (bottom row). L*, a*, b* values of average spectra (+) and average lab values (×) included. Note the different axes scale limits between the left and right columns and top and bottom rowsBack to article page