eva2004 moscow1 intas project a distributed database and processing system for watermarks (july 2001...
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EVA2004 Moscow 1
INTAS Project A Distributed Database and Processing
System for Watermarks(July 2001 – June 2004)
Emanuel Wenger1, Victor Karnaukhov2
1Austrian Academy of Sciences, Commission for Scientific Visualization, Vienna, Austria
2Russian Academy of Sciences, Institute for Information Transmission Problems, Moscow, Russia
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EVA2004 Moscow 2
Watermark project
• artefacts in European handmade paper• dating of paper (books, documents,
prints, …)• important for libraries (old books),
museums (prints, paintings), auction houses, historians
• comparizon of undated wm with wm in catalogues (Briquet, Mojin, Piccard, Ligachev,…)
• computer: improvement – quality (images)– speed (search)– quantity (network of databases)
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EVA2004 Moscow 3
Watermark catalogue
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EVA2004 Moscow 4
Teams
• CO: Austrian Academy of Sciences, Commission for Scientific Visualization, Commission of Paleography and Codicology of Medieval Manuscripts, Vienna, Austria (Haidinger, Stieglecker, Wenger)
• CR1: Koninklijke Bibliotheek, The Hague, The Netherlands (vanThienen)
• CR2: Russian Academy of Sciences, Institute for Information Transmission Problems, Moscow, Russia (Victor Karnaukhov)
• CR3: State Historical Museum, Department of Manuscripts and Old Books, Moscow, Russia (Elena Oukhanova, Elena Popova)
• CR4: Russian Academy of Sciences, Laboratory of Conservation and Restoration of Documents (Dmitrij Erastov), and National Library of Russia, St. Petersburg, Russia (DenisTsypkin).
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EVA2004 Moscow 5
Project Aims
• Improve all steps of wm processing– Research in recording technology– Distributed database– Develop and extend an integrated wm
processing system
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EVA2004 Moscow 6
Starting Situation
• Database in Vienna of medieval watermarks from manuscripts in Klosterneuburg (Haidinger)
• Watermark database and processing tools (Victor Karnaukhov)
• Database of wm of Dutch incunabula (vanThienen)
• Invention and research of betaradiography in St. Petersburg (Dmitrij Erastov) and image processing (Denis Tsypkin)
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EVA2004 Moscow 7
Watermark Recording
• rubbing• beta radiography• electron radiography
• digital camera– special illumination– multispectral images (infrared)– image processing
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EVA2004 Moscow 8
Rubbing
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EVA2004 Moscow 9
Rubbing
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EVA2004 Moscow 10
Rubbing
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EVA2004 Moscow 11
Rubbing
• (poor) image quality depending on quality of paper
• removal of overlapping text
• very cheap
• fast procedure
• portable equipment
• scanning of images required
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EVA2004 Moscow 12
Beta radiography
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EVA2004 Moscow 13
Beta radiography
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EVA2004 Moscow 14
Beta radiography
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EVA2004 Moscow 15
Beta radiography
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EVA2004 Moscow 16
Beta radiography
• good image quality
• removal of overlapping text
• expensive (beta radiography plate, film)
• long exposure times (up to 8 hours)
• portable equipment
• scanning of images required
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EVA2004 Moscow 17
Electron radiography
lead foil
film
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EVA2004 Moscow 18
Electron radiography
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EVA2004 Moscow 19
Electron radiography
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EVA2004 Moscow 20
Electron radiography
• very good image quality
• removal of overlapping text
• very expensive (service, film)
• short exposure times (250-300 in 4 hours)
• big equipment, not portable everywhere
• scanning of images required
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EVA2004 Moscow 21
State Historical Museum (E. Oukhanova)
Tools:1. Digital camera Olympus C-3030Zoom2. Slimlight device3. A scale, a little weight
(a piece of marble)
Resolution for processing: folio – 170-210 dpi, quarto – 200-250 dpi
Digital camera
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EVA2004 Moscow 22
Slimlight
• 1mm foil
• electroluminiscence
• flexible
• homogenous illumination
• no heat and ultraviolet radiation
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EVA2004 Moscow 23
Digital camera
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EVA2004 Moscow 24
Digital camera
• good image quality, BUT• no removal of overlapping text (only by
sophisticated software)• very cheap (digital camera, illumination)• short processing time• portable equipment• no scanning of images required, no
hardcopy
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EVA2004 Moscow 25
Watermark Processing
• preprocessing– contrast enhancement– standardized quality
• geometric corrections– orientation– crop
• extraction (segmentation)
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EVA2004 Moscow 26
Watermark database
• Databases: libraries, books, types, watermarks, ...
• Classification of wm into types, subtypes (6 levels)
• Multilingual (problem of miss. standards)
• Search for identical wms or variants
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EVA2004 Moscow 27
Type/Subtypes
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EVA2004 Moscow 28
Watermark database and toolkit
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EVA2004 Moscow 29
Results
• Enlargement and improval of the wm databases and processing systems in TheHague and Vienna
• Watermark database at the Historical Museum in Moscow
• Watermark database at the Russian State Library in St. Petersburg
• Multilingual database (English, German, Russian)• Combination of all four watermark databases
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EVA2004 Moscow 30
Austrian Academy of Sciences, Vienna
• Alois Haidinger, Maria Stieglecker, Emanuel Wenger
• watermark database (7000 images from monasteries e.g. Klosterneuburg, Nationalbibliothek, …), Paradox, MYSQL
• betaradiography
• online db (7000 betaradiography images) http://www.oeaw.ac.at/ksbm/wz/_adm/php/wzma2.htm new webpage since end of November
• Piccard online (Stuttgart)
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EVA2004 Moscow 31
Koninklijke Bibliotheek,The Hague
• Gerard van Thienen
• Watermarks in incunabula printed in the low countries 2000 incunabula, 800 dated
• rubbing, electron radiography
• biggest online watermark database (16 000 records), MS-Access
• very nice webpage (http://watermark.kb.nl/)
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EVA2004 Moscow 32
Russian Academy of Sciences, Moscow
• Victor N. KARNAUKHOV, Olga V. KIREEVA, Andrei V. KARNAUKHOV, Olga MELIKOVA
• implementation of watermark toolkit (image enhancement, measurement, geometrical corrections, ...)
• database design
• coordination of Russian teams
• mirror of Russian databases
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EVA2004 Moscow 33
State Historical Museum , Moscow
• Elena V. Oukhanova, Elena V. Popova, Elena S. Kondrashkina, Elena N. Kazakova
• digital cameras + slimlight
• manuscript collections (Eparkhialnoe) contains 200 manuscripts of the 15th century
• 1054 watermarks in database
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EVA2004 Moscow 34
National Library of Russia, St. PetersburgRussian Academy of Sciences, St. Petersburg Scientific Center,
Department of Document Restoration and Conservation
• Dmitrij P. Erastov, Denis O. Tsypkin, Mikhail A. Shibaev
• beta radiography (Technitium)
• digital television recording in visible and infrared areas of the spectrum
• 1000 pictures from Russian and West-European manuscripts of 15th -16th centuries (500 Polish documents of the 16th centuries from the important P. P. Dubrovsky’s collection of autographs )
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EVA2004 Moscow 35
Future
• Continuation of the wm database project• Intensify international cooperation by a
wider EU project• Link together watermark databases (portal)
– Distributed database– Standards– Exchange of processing tools (image
processing, measurements)
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EVA2004 Moscow 36
Watermark Database Portal
Vienna
Portal webpage
The Hague
Moscow St. Petersburg