caa a22 4500 445379596 CHVBK 20180317143013.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10032-010-0140-6 doi (NATIONALLICENCE)springer-10.1007/s10032-010-0140-6 Classifying the typefaces of the Gutenberg 42-line bible [Elektronische Daten] [Aureli Alabert, Luz Rangel] We have measured the dissimilarities among several printed characters of a single page in the Gutenberg 42-line bible, and we prove statistically the existence of several different matrices from which the metal types were constructed. This is in contrast with the prevailing theory, which states that only one matrix per character was used in the printing process of Gutenberg's greatest work. The main mathematical tool for this purpose is cluster analysis, combined with a statistical test for outliers. We carry out the research with two letters, $${\texttt{i}}$$ and $${\texttt{a}}$$ . In the first case, an exact clustering method is employed; in the second, with more specimens to be classified, we resort to an approximate agglomerative clustering method. The results show that the letters form clusters according to their shape, with significant shape differences among clusters, and allow to conclude, with a very small probability of error, that indeed the metal types used to print them were cast from several different matrices. Springer-Verlag, 2010 Classification nationallicence Cluster analysis nationallicence Outlier testing nationallicence Johannes Gutenberg nationallicence 42-line bible nationallicence Movable types nationallicence Alabert Aureli Department of Mathematics, Universitat Autònoma de Barcelona, 08193, Bellaterra, Catalonia aut Rangel Luz Department of Design and Image, Universitat de Barcelona, PauGargallo, 4, 08028, Barcelona, Catalonia aut International Journal on Document Analysis and Recognition (IJDAR) Springer-Verlag 14/4(2011-12-01), 303-317 1433-2833 14:4<303 2011 14 10032 https://doi.org/10.1007/s10032-010-0140-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10032-010-0140-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Alabert Aureli Department of Mathematics, Universitat Autònoma de Barcelona, 08193, Bellaterra, Catalonia aut NATIONALLICENCE 700 1- Rangel Luz Department of Design and Image, Universitat de Barcelona, PauGargallo, 4, 08028, Barcelona, Catalonia aut NATIONALLICENCE 773 0- International Journal on Document Analysis and Recognition (IJDAR) Springer-Verlag 14/4(2011-12-01), 303-317 1433-2833 14:4<303 2011 14 10032 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer