Recompression of Bitmaps in PDF using JBIG2 format
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14330%2F10%3A00049414" target="_blank" >RIV/00216224:14330/10:00049414 - isvavai.cz</a>
Result on the web
<a href="http://nlp.fi.muni.cz/projekty/eudml/pdfRecompression/" target="_blank" >http://nlp.fi.muni.cz/projekty/eudml/pdfRecompression/</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Recompression of Bitmaps in PDF using JBIG2 format
Original language description
Software for automatization of lossy (re)compression of scanned bitmaps to standard JBIG2 with adaptive optimalization level of lossiness and compression. It can be used on any PDF files that contain bitonal images (e.g. created by scanning during digitization). On these types of files the space gained by recompression is often more than 50%. In addition, the quality of the rendered page is often better than before recompression, as character candidates used during recompression are averaged over all representants recognized (by OCR techniques) in given PDF. It has been applied on 30,000+ pages of http://dml.cz and has been also used in the EuDML project. The application has been described in the peer-reviewed publications like Sojka, P., Hatlapatka, R.: Document Engineering for a Digital Library: PDF recompression using JBIG2 and other optimization of PDF documents. In Proceedings of DocEng 2010 conference. ACM, 2010. p.3-12, ISBN 978-1-4503-0231-9
Czech name
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Czech description
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Classification
Type
R - Software
CEP classification
JC - Computer hardware and software
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Internal product ID
PDFJbim 2010/1
Technical parameters
Petr Sojka, FI MU Brno, Botanická 68a, 60200 Brno, CZ, tel. +420549496966
Economical parameters
Výrazná úspora místa a přenosových kapacit PDF souborů (20-80%), což jen v projektech EuDML a DML-CZ činí úsporu desítek či stovek terabajtů dat a človekodnů či člověkoměsíců čekání na přenos zobrazovaných PDF..
Owner IČO
00216224
Owner name
Masarykova univerzita