Neinformirano odkrivanje podvojenih regij v digitalnih slikah

Povzetek

Ključne besede

Podatki

Jezik:	Slovenski jezik
Leto izida:	2009
Tipologija:	2.11 - Diplomsko delo
Organizacija:	UL FRI - Fakulteta za računalništvo in informatiko
Založnik:	[B. Čargo]
UDK:	004.93(043.2)
COBISS:	7018836
Št. ogledov:	813
Št. prenosov:	322
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	[Blind detection of duplicate regions in digital images]
Sekundarni povzetek:	This work refers to the research area of digital image processing. Its main purpose is to elucidate the field of automatic digital forgery detection and, within its scope, describe a particular algorithm for blind detection of duplicated image regions: the so-called Duplicate Region Detector (DRD). The algorithm is based on principal component analysis, reduction of image blocks representations, and their lexicographical comparison. Our java implementation was tested on a population with positive and negative examples. Test results enabled us to assess efficiency and efficacy, as well as robustness against specific digital image processing operations. The principal conclusion is a thesis that the algorithm can only be made more efficient by abandoning fixed parameter values that are set in advance in favour of values that are defined based on characteristics of each input image.
Sekundarne ključne besede:	computer vision;image tampering;duplicated image region;principal component analysis;reduced representation;candidate list;candidate removal;duplication map;computer science;diploma;
Vrsta datoteke:	application/pdf
Vrsta dela (COBISS):	Diplomsko delo
Komentar na gradivo:	Univerza v Ljubljani, Fakulteta za računalništvo in informatiko
Strani:	75 str.
ID:	23868244