Fig. 6From: Beyond the connoisseurship approach: creating a chronology in Hokusai prints using non-invasive techniques and multivariate data analysisVisible images and UV-induced visible luminescence (inserts) of the three impressions of Morning after the Snow at Koishikawa in Edo from the Met collection showing the use of fluorescing and non-fluorescing yellow colorants in prints belonging to different clusters. (left) JP2957, (middle) JP2555 and (right) JP1330. UV-induced visible luminescence images were acquired using a hand-help UV lamp and a digital camera and were not part of a thorough multispectral imaging examination. They were intended as an exploratory phase aimed at localizing organic colorants used in the various prints. As a result, they are not color calibrated using standard protocolsBack to article page