Full text: New perspectives to save cultural heritage

CIPA 2003 XIX th International Symposium, 30 September - 04 October, 2003, Antalya, Turkey 
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bible, 1478 
• In contrast to digital recording, the resulting material of the 
analogue reproduction can be stored for a minimum of 100 
years without a special treatment - assuming an acceptable 
atmosphere. 
By using a large format camera consisting of a special lens for 
reproductions and the latest fine structured Kodak film, the 
quality is near to the high end scanner material. 
Of course the treatment of film is more expensive at the 
beginning. Especially the step of digitising, which is done by a 
specialized company, uses some time. But in the end the result 
of the documentation is analogue for an archive and digital for 
the further steps of publication. 
4.DEMANDS ON THE REPRODUCTION PROCEDURE 
The decision for the analogue way lead to assumptions and 
calculations for an expectable quality. A film material with an 
“resolution power” of 100 lines/mm would have about 5000dpi 
resolution in a digital standard (100 lines * 25,4 = 2504 
lines/inch, resolving power means that 2 lines can be separated, 
therefore 2504 * 2 = 5008 lpi). 
The quality of the digitised film is not as brilliant as the digital 
reproduction, but the step of digitising is developing and may 
be repeated - if necessary - with better technologies in future. 
In order to report the size and the colours, different scales and 
tables were used in a way that the photographed picture 
consisted of the object, a scale in the height of the writings 
surface, a scale in the height of the cover, an exact right angle 
parallel to the film plane and a colour match table of Kodak. 
The usage of scales in different heights was necessary because 
the actual difference of these was up to 12 cm! 
The camera position did not move from the first to the last 
picture, in order to produce a homogenous material for the 
ongoing production. 
For the lighting studio flash tubes were used to treat the objects 
carefully with this very short but strong lighting influence, 
instead of using permanent lights. 
5.PUBLISHING PROCESS 
The publishing process started with the digitising. Using a film 
scanner for medium format films, the best quality delivered in 
uncompressed files could be 75MB. 
The aim of the publishing process is to distribute the produced 
pictures via the internet - as soon as a supporting project can be 
acquired - or with the help of CD-ROMs. 
In case of the internet the picture sizes have to be reduced. 
Guidelines for a useful preparation can be found at the library 
of the University of Cologne [http://www.ceec.uni-koeln.de], 
where the whole stock of ancient handwritings was published in 
the internet and is accessible without restrictions. 
A CD-Rom publication requires a useful programming and 
presentation. Therefore an appropriate file format should be 
found. 
The value, distribution and ideology of the portable document 
file format - short PDF - guarantees a platform independent 
and pointing to the future standard that is widely used for years 
and scientifically acknowledged. 
The possibility to program a simple user interface via the 
supported Javascript features makes it suitable for educational 
purposes. The important information can be highlighted and is 
not disturbed by intricate buttons and menu structures. 
The zoom function allows magnifications up to 500% of the 
original size. This should be enough for the needs of research 
and prevents the books from being moved and touched again. 
The pictures are accompanied with scientific articles describing 
the general history and the importance of the books. In the same 
way interpretations of illustrations may be added to complete 
the product. 
A minimum of two languages is one objective of the project's 
idea.
	        
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