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Title:Psevdonaključno vnašanje šuma v Freemanove verižne kode : magistrsko delo
Authors:ID Lukač, Luka (Author)
ID Žalik, Borut (Mentor) More about this mentor... New window
ID Strnad, Damjan (Comentor)
Files:.pdf MAG_Lukac_Luka_2024.pdf (1,93 MB)
MD5: 0B05129618C631447A66B47800364862
 
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 predstavljamo metodo za psevdonaključno vnašanje šuma v ravninske geometrijske objekte, opisane z osemsmernimi ali s štirismernimi Freemanovimi verižnimi kodami. Na podlagi definiranih akcij vnašamo šum neposredno v simbole verižnih kod na položajih, izbranih z uporabo enega izmed psevdonaključnih generatorjev števil. Zasnova akcij zagotavlja nespremenljivost topoloških značilnosti geometrijskih objektov. Testiranje metode na naboru raznolikih geometrijskih objektov in ovrednotenje vnesenega šuma z uporabo metrike fraktalne dimenzije potrjujeta uspešnost metode ne glede na značilnosti posameznega geometrijskega objekta.
Keywords:algoritem, psevdonaključni generator, 2D-geometrijski objekt, sprememba oblike, fraktalna dimenzija
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[L. Lukač]
Year of publishing:2024
Number of pages:1 spletni vir (1 datoteka PDF (X, 33 f.))
PID:20.500.12556/DKUM-89138 New window
UDC:004.4'415:514.747(043.2)
COBISS.SI-ID:203997699 New window
Publication date in DKUM:11.07.2024
Views:305
Downloads:183
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FERI
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:18.06.2024

Secondary language

Language:English
Title:Pseudorandom Noise Injection into Freeman Chain Codes
Abstract:This master thesis presents a method for pseudorandom noise injection into planar geometric shapes described by eight- or four-directional Freeman chain codes. Based on a set of predefined alterations, noise is injected directly into chain code symbols at positions that are selected using a pseudorandom number generator. The design of alterations ensures that topological characteristics of the selected geometric object do not change during this procedure. Extensive tests and evaluation of the injected noise with fractal dimension indicate that the method is successful regardless of the geometric shape's characteristics.
Keywords:algorithm, pseudorandom number generator, 2D geometric shape, boundary alteration, fractal dimension


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