HATLAPATKA, Radim and Petr SOJKA. JBIG2 komprese (JBIG2 compression). Petr Sojka (školitel bakalářské práce). Brno: Masarykova univerzita, 2010, 33 pp.
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Basic information
Original name JBIG2 komprese
Name in Czech JBIG2 komprese
Name (in English) JBIG2 compression
Authors HATLAPATKA, Radim (203 Czech Republic, belonging to the institution) and Petr SOJKA (203 Czech Republic, guarantor, belonging to the institution).
Petr Sojka (školitel bakalářské práce).
Edition Brno, 33 pp. 2010.
Publisher Masarykova univerzita
Other information
Original language Czech
Type of outcome Special-purpose publication
Field of Study 10201 Computer sciences, information science, bioinformatics
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
WWW Archiv PDF
RIV identification code RIV/00216224:14330/10:00049387
Organization unit Faculty of Informatics
Keywords (in Czech) aritmetické kódování; bitmapa; bitová hloubka; DML-CZ; filtr; Huffmanovo kódování; JBIG2; jbig2enc; komprese; kompresní poměr; leptonica; pixel; prahování; půltónové zobrazení; PDF; ztrátovost
Keywords in English arithmetic coding; bitmap; bit depth; compression; compression ratio; DML-CZ; filter; halftone; Huffman coding; JBIG2; jbig2enc; leptonica; lossiness; PDF; pixel; thresholding
Tags arithmetic coding, bit depth, bitmap, compression, compression ratio, DML-CZ, filter, halftone, Huffman coding, JBIG2, jbig2enc, leptonica, lossiness, PDF, pixel, thresholding
Changed by Changed by: doc. RNDr. Petr Sojka, Ph.D., učo 2378. Changed: 3/5/2011 10:03.
Abstract
Seznámení se se standardem JBIG2 (http://www.jpeg.org/public/fcd14492.pdf) a enkodérem jbig2enc (http://www.imperialviolet.org/jbig2.html) Rešerše existujících open source i komerčního sw pro práci s JBIG2. Nalezené nástroje aplikovány na data projektu DML-CZ http://dml.cz (zmenšení velikosti vícevrstvých PDF při nezmenšené kvalitě bitmap). Navrhnutí a implementace konkrétního nástroje pro optimalizaci dat projektu, otestujte jej a aplikujte ve workflow projektu. Jeho instalace, konverze dat a vyhodnocení úspory velikosti a udržení kvality.
Abstract (in English)
Introduction of standard JBIG2 (http://www.jpeg.org/public/fcd14492.pdf) and of encoder jbig2enc (http://www.imperialviolet.org/jbig2.html) Facts of existing applications (open source and commercial) for working with standard JBIG2. Founded applications used on data of project DML-CZ http://dml.cz (decreasing size of multi layer PDF without decreasing quality of bitmaps). Design and implementation of concrete application for optimalization data of project, testing and applying it on workflow of project DML-CZ. Its installation, conversion of data and evaluation saves of size and keeping quality.
Links
1ET200190513, research and development projectName: DML-CZ: Česká digitální matematická knihovna
Investor: Academy of Sciences of the Czech Republic, DML-CZ: Czech Digital Mathematical Library
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