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Title:Fraktalno stiskanje slik z zveznimi barvnimi toni
Authors:ID Zagorc, Andrej (Author)
ID Žalik, Borut (Mentor) More about this mentor... New window
Files:.pdf MAG_Zagorc_Andrej_2017.pdf (1,70 MB)
MD5: 58417F6108D2CE3DF5D9C6CADADAD60E
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:V magistrskem delu predstavimo fraktalno stiskanje slik z zveznimi barvnimi toni, ki spada med izgubne metode stiskanja in omogoča visoko razmerje stiskanja. Slike z zveznimi barvnimi toni vsebujejo samopodobne vzorce. Ideja fraktalnega stiskanja je, da te vzorce učinkovito shrani. Sliko razdelimo na bloke ter s pomočjo delnega iteracijskega sistema (PIFS) poiščemo preslikave med bloki območja in domenskimi bloki. Iskanje preslikav je časovno zelo potratno, zato se metoda v praksi ne uporablja. V nalogi implementiramo in predstavimo adaptivni algoritem, ki delovanje bistveno pohitri.
Keywords:stiskanje, slika, fraktal, IFS, izgubna metoda
Place of publishing:[Maribor
Publisher:A. Zagorc
Year of publishing:2017
PID:20.500.12556/DKUM-65789 New window
UDC:528.852:530.191(043.2)
COBISS.SI-ID:20620566 New window
NUK URN:URN:SI:UM:DK:IONL5CGB
Publication date in DKUM:26.05.2017
Views:1724
Downloads:153
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FERI
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Secondary language

Language:English
Title:Fractal image compression for continuous tone images
Abstract:In master thesis we describe fractal image compression on images with the continous color tones. It is one of the lossy compression methods and can achieve very high compression ratios. Continous tone images contains self-similar patterns. The idea of fractal compression is that these patterns are efficiently stored. Images are partitioned into fixed blocks using Partitioned iteration function system (PIFS). After that the transformations between range blocks and domain blocks are determined; however, task is very time-consuming. This is the main reason why this method is not widely used. An adaptive algorithm that works much faster than traditional method was implemented in this master thesis.
Keywords:compression, image, fractal, IFS, lossy method


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