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master's thesis
Provjera autentičnosti računalno generiranih holograma tiskanih standardnim grafičkim CtF (Computer to Film) postupkom
Zagreb: University of Zagreb, Faculty of Graphic Arts, 2020. urn:nbn:hr:216:037232
Kovačević, Sandra
University of Zagreb
Faculty of Graphic Arts

Institutional repository: Faculty of Graphic Arts Repository

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Kovačević, S. (2020). Provjera autentičnosti računalno generiranih holograma tiskanih standardnim grafičkim CtF (Computer to Film) postupkom (Master's thesis). Zagreb: University of Zagreb, Faculty of Graphic Arts. Retrieved from https://urn.nsk.hr/urn:nbn:hr:216:037232

Kovačević, Sandra. "Provjera autentičnosti računalno generiranih holograma tiskanih standardnim grafičkim CtF (Computer to Film) postupkom." Master's thesis, University of Zagreb, Faculty of Graphic Arts, 2020. https://urn.nsk.hr/urn:nbn:hr:216:037232

Kovačević, Sandra. "Provjera autentičnosti računalno generiranih holograma tiskanih standardnim grafičkim CtF (Computer to Film) postupkom." Master's thesis, University of Zagreb, Faculty of Graphic Arts, 2020. https://urn.nsk.hr/urn:nbn:hr:216:037232

Kovačević, S. (2020). 'Provjera autentičnosti računalno generiranih holograma tiskanih standardnim grafičkim CtF (Computer to Film) postupkom', Master's thesis, University of Zagreb, Faculty of Graphic Arts, accessed 19 December 2024, https://urn.nsk.hr/urn:nbn:hr:216:037232

Kovačević S. Provjera autentičnosti računalno generiranih holograma tiskanih standardnim grafičkim CtF (Computer to Film) postupkom [Master's thesis]. Zagreb: University of Zagreb, Faculty of Graphic Arts; 2020 [cited 2024 December 19] Available at: https://urn.nsk.hr/urn:nbn:hr:216:037232

S. Kovačević, "Provjera autentičnosti računalno generiranih holograma tiskanih standardnim grafičkim CtF (Computer to Film) postupkom", Master's thesis, University of Zagreb, Faculty of Graphic Arts, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:216:037232

Metadata
TitleProvjera autentičnosti računalno generiranih holograma tiskanih standardnim grafičkim CtF (Computer to Film) postupkom
AuthorSandra Kovačević
MentorDamir Modrić (mentor)
Committee memberIvan Budimir (član povjerenstva)
Committee memberDamir Modrić (član povjerenstva)
Committee memberKatja Petric Maretić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Graphic Arts
Zagreb
Defense date and country2020-9-22, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Graphic Technology
Abstract
Fokus ovog rada su prethodno računalno generirani hologrami otisnuti CtF (Computer to Film) standardnom grafičkom tehnikom ispisa u svrhu provjere mogućnosti kopiranja istih. Nad prikupljenim podacima provodila se analiza i usporedba interferentnih uzoraka u svrhu detektiranja deformacija prilikom kopiranja na visokim rezolucijama. Obrada podataka sastajala se od dvije faze. Optička rekonstrukcija kopiranih interferentnih uzoraka programom Adobe Photoshop CC 2015 (korištenje alata za uređivanje razine osvjetljenja slike i pretvaranje slike u tonovima sive u crno-bijele s visokim kontrastom) i numerička rekonstrukcija primjenom specifičnog programa ImageJ. Korišteni program koristi opciju FFT (Fast Fourier Transform) i omogućava brzu obradu informacija. Analizom rezultata interferiranih uzoraka pri kopiranju na visokim rezolucijama potvrdili smo da se računalno generirani hologrami ne mogu kopirati navedenim metodama, odnosno nije moguće generirati kvalitetnu repliku.
Abstract (english)
The focus of this paper are previously computer-generated holograms printed in CtF (Computer to Film) technology in order to check the possibility of their fabrication. The collected data were analysed and compared for the purpose of detecting deformations when copying at high resolutions. Data processing consisted of two phases. Optical reconstruction of copied patterns with Adobe Photoshop CC 2015 (using tools to edit the brightness of the image and convert the image in grayscale to black and white with high contrast) and numerical reconstruction using a specific program ImageJ. Used program gives the possibility of the FFT (Fast Fourier Transform) option and enables fast information processing. By analysing the results of known samples when copying at high resolutions, we confirmed that computer-generated holograms cannot be copied by the mentioned methods, therefore it is not possible to generate a quality replica.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:216:037232
Study programmeTitle: Graphic technology; specializations in: Graphic technology, Design of graphic products
Course: Graphic technology
Study programme type: university
Study level: graduate
Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije (sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-04-18 23:04:27