Fig. 3From: Colorimetry to assess the visual impact of dust deposition on mosaics at sheltered archaeological sitesRGB images that show the evolution of the cleaning process: dirty with 6 weeks’ deposits RGBm0 (left), after being cleaned by dry means RGBm1 (middle) and by wet means RGBm2 (right). Area: 500 mm × 510 mmBack to article page