Fig. 11From: Extracting chain lines and laid lines from digital images of medieval paper using spectral total variation decompositionComparison of laid line extraction with a isotropic TV decomposition and b anisotropic TV decomposition. Patch taken from The Parker Library, Cambridge, Corpus Christi College, MS 78: Domenico di Bandino, Fons memorabilium uniuersi (book 5, De uiris claris), p. 3Back to article page