About: Recompression of Bitmaps in PDF using JBIG2 format

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://nlp.fi.muni.cz/projekty/eudml/pdfRecompression/
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 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 (en)
Title	Recompression of Bitmaps in PDF using JBIG2 format Recompression of Bitmaps in PDF using JBIG2 format (en)
skos:prefLabel	Recompression of Bitmaps in PDF using JBIG2 format Recompression of Bitmaps in PDF using JBIG2 format (en)
skos:notation	RIV/00216224:14330/10:00049414!RIV12-AV0-14330___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(1ET200190513), P(LA09016), S
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Sojka, Petr Hatlapatka, Radim
http://linked.open.../riv/druhVysledku	R - Software
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...onomickeParametry	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..
http://linked.open...titaPredkladatele	Masarykova univerzita / Fakulta informatiky
http://linked.open...dnocenehoVysledku	284205
http://linked.open...ai/riv/idVysledku	RIV/00216224:14330/10:00049414
http://linked.open...terniIdentifikace	PDFJbim 2010/1
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	JBIG2; compression; jbig2enc; PDF; PDF size optimization; EuDML; DML-CZ; OCR (en)
http://linked.open.../riv/klicoveSlovo	OCR compression JBIG2 PDF size optimization jbig2enc DML-CZ EuDML PDF
http://linked.open...ontrolniKodProRIV	[B6F8875364AE]
http://linked.open.../licencniPoplatek	N - Poskytovatel licence na výsledek nepožaduje licenční poplatek
http://linked.open...okalizaceVysledku	http://code.google.com/p/pdfrecompressor/
http://linked.open...in/vavai/riv/obor	JC
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	DML-CZ: Czech Digital Mathematical Library Czech Republic membership in the European Research Consortium for Informatics and Mathematics (ERCIM)
http://linked.open...UplatneniVysledku	2010
http://linked.open...echnickeParametry	Petr Sojka, FI MU Brno, Botanická 68a, 60200 Brno, CZ, tel. +420549496966
http://linked.open...iv/tvurceVysledku	Sojka, Petr Hatlapatka, Radim
http://linked.open...avai/riv/vlastnik	Masarykova univerzita
http://linked.open...itiJinymSubjektem	A - Nabytí licence je nutné vždy
http://localhost/t...ganizacniJednotka	14330
is http://linked.open...avai/riv/vysledek of	Recompression of Bitmaps in PDF using JBIG2 format Recompression of Bitmaps in PDF using JBIG2 format

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