Fig. 9
Results for chain line extraction of two different papers, the top images show the reflected light image and the bottom images the spectral TV decomposed images with the detected lines drawn. a Patch taken from The Parker Library, Cambridge, Corpus Christi College, MS 151: Iohannes Auerbach OFM, Processus iudiciarius. François de Meyronnes OFM, De indulgentiis, etc., p. iiv. The average chain line distance is 2.63cm. Individual chain line distances in cm are shown in the image. The algorithm detected two additional lines, marked by red arrows. b Patch taken from The Parker Library, Cambridge, Corpus Christi College, MS 171A: Scotichronicon (Volume 1), p. xvir. The average chain line distance is 3.93cm. Individual chain line distances in cm are shown in the image. The algorithm detected two additional lines, marked by red arrows. c Patch taken from The Parker Library, Cambridge, Corpus Christi College, MS 81: Homer, Iliad, Odyssey. Quintus of Smyrna, Posthomerica, p. 55. The average chain line distance is 3.156cm. d Patch taken from The Parker Library, Cambridge, Corpus Christi College, MS 81: Homer, Iliad, Odyssey. Quintus of Smyrna, Posthomerica, p. 9. The average chain line distance is 3.37cm. The algorithm detected one additional line at the fold, marked by a red arrow