Metoda za povećanje oštrine slike utemeljena na valićnoj transformaciji

master's thesis

• Title (english): Method for image sharpness enhancement based on wavelet transform
• Author: Ivan Kesedžić
• Mentor: Sonja Grgić (mentor)
• Committee member: Sonja Grgić (predsjednik povjerenstva)
• Committee member: Tomislav Kos (član povjerenstva)
• Committee member: Jelena Božek (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2016-07-12, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

U ovom su radu opisane osnovne metode obradbe slike, načini mjerenja kvalitete slike te značaj oštrine na ukupnu kvalitetu iste. Opisana su dva algoritma za povećanje oštrine slike, jedan temeljen na Laplaceovu operatoru, a drugi na valićnoj transformaciji.
U sklopu rada implementiran je program koji nudi osnovne mogućnosti obradbe slike i povećanja njezine kvalitete, a čija je najvažnija funkcija izoštravanje iste. Taj je program testiran, a rezultati su uspoređeni i s gotovim alatima dostupnim na Internetu.

Abstract (english)

This paper describes basic methods for image processing, image quality measures and the importance of sharpness for image quality. Two algorithms for image sharpness enhancement are described, one based on Laplace operator, and the other based on wavelet transform.
Within this paper the program that offers basic functions for image processing and image enhancement has been implemented. The most important function of the program is sharpness enhancement. The program has been tested and the results were compared with some other programs that are available online.

• Keywords: obradba slike; povećanje kvalitete slike; oštrina; valićna transformacija
• Keywords (english): image processing; image enhancement; sharpness; wavelet transform
• Language: croatian
• URN:NBN: urn:nbn:hr:168:909090
• Study programme: Title: Information and Communication Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije (magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 09:38:35