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Rare and Special in the Digital Environment: Damaged Texts and Digitisation Technologies

Rare and Special in the Digital Environment: Damaged Texts and Digitisation Technologies. Professor Melissa Terras Professor of Digital Humanities, UCL Dept of Information Studies Co-Director, UCL Centre for Digital Humanities m.terras@ucl.ac.uk, @melissaterras.

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Rare and Special in the Digital Environment: Damaged Texts and Digitisation Technologies

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  1. Rare and Special in the Digital Environment: Damaged Texts and Digitisation Technologies Professor Melissa Terras Professor of Digital Humanities, UCL Dept of Information Studies Co-Director, UCL Centre for Digital Humanities m.terras@ucl.ac.uk, @melissaterras

  2. http://ericwilliamcarroll.com/blog/?m=201203

  3. Image Quality 1: Resolution The higher the resolution, the higher the quality of image. 20 dpi 72 dpi 300 dpi

  4. Image Quality 2: Bit Depth • Use bi-tonal: when shading is not an issue • modern printed books • Line art • But high res to capture detail • Use Grey-scale: tones of Grey • black and white photographs, half-tone illustrations, typescript, archival materials in black and white • Where colour isnt important • Use colour whenever colour is present in the original and it conveys meaning • Trade off in file sizes

  5. Compression and File Formats

  6. The first printed edition of Euclid, translated by Adelardus of Bath and with the commentary of Novarese, 1482 Biblia Latina, Petrus Angleus de Monte Ulmi , 1492 http://digitool-b.lib.ucl.ac.uk

  7. http://theartofgooglebooks.tumblr.com

  8. Close up - Tablet 1563 • Complex incisions • Woodgrain • Surface discolouration • Warping • Cracking • Noisy image • Palimpsest • Long process

  9. Image processing: illumination correction Original image After illumination correction

  10. After woodgrain removal Image processing: woodgrain removal -1 Original image With thanks to Dr Segolene Tarte, eSAD project, OeRC

  11. Transmittance factors of 21 optical bandpass filters in the visible spectrum– with thanks to Lindsay Macdonald

  12. Syriac Galen Palimpsest (see http://digitalgalen.net/ ) – with thanks to Alejandro Giacometti, and Adam Gibson

  13. 1632, burnt in Guildhall Fire in 1786

  14. http://greatparchmentbook.wordpress.com/ - with thanks to Tim Weyrich and Kazim Pal

  15. http://www.sciencemuseum.org.uk/about_us/history/shipping.aspxhttp://www.sciencemuseum.org.uk/about_us/history/shipping.aspx

  16. http://www.solarstorms.org/Spipeline.html

  17. http://www.johnnycupcakes.com/blog/2010/03/objects-suitcases-tidbits/http://www.johnnycupcakes.com/blog/2010/03/objects-suitcases-tidbits/

  18. http://www.flickr.com/photos/sansplans/5440098840/sizes/l/

  19. http://truthbase.org/Weigh%20up%20module%201%20session%201.htm

  20. http://www.ewarrenperryjr.com/2009/06/rehearsals-have-begun-in-chicago-for-ekphrasis-cave-walls-to-soup-cans.htmlhttp://www.ewarrenperryjr.com/2009/06/rehearsals-have-begun-in-chicago-for-ekphrasis-cave-walls-to-soup-cans.html

  21. http://rochester.edu/college/mimesis/

  22. http://prov.vic.gov.au/community-programs/digitisation/projects-underwayhttp://prov.vic.gov.au/community-programs/digitisation/projects-underway

  23. With thanks to • eSAD Project • Prof Alan Bowman, Prof Mike Brady, Dr Ségolène Tarte, Dr Henriette Roued-Cunliffe • Cultural Heritage Destruction Project • Alejandro Giacometti, Dr Adam Gibson, Lindsay MacDonald, Alberto Campagnolo, Simon Mahony • Great Parchment Book Project • Dr Tim Weyrich, Kazim Pal, Alberto Campagnolo, Philippa Smith, Caroline De Stefani, Rachael Smither, Patricia Stewart, Nicola Avery. • Science Museum Shipping Gallery • A Prugnon, J Hindmarch, Matthew Shaw, William Trossell, Anita Soni, Prof Stuart Robson

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