Artefakti na fotografijama

master's thesis

• Title (english): Photograph artefacts
• Author: Petra Papoči
• Mentor: Mario Basletić (mentor)
• Committee member: Mario Basletić (predsjednik povjerenstva)
• Committee member: Katarina Jeličić (član povjerenstva)
• Committee member: Ivica Friščić (član povjerenstva)
• Committee member: Željko Skoko (član povjerenstva)
• Committee member: Emil Tafra (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Physics); Zagreb
• Defense date and country: 2023-11-21, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract

U ovom radu se bavimo jednim artefaktom na fotografijama, krugom zamućenja. Uzrok nastajanja tog artefakta su sitne čestice van fokusa pri fotografiranju predmeta. Navedena pretpostavka se provjerila eksperimentom koji je uključivao fotografiranje predmeta, žice, na nekoliko udaljenosti s odredenim fokusnim duljinama. Promjer kruga zamućenja se odredio iz fotografija pomoću alata grafičkog programa Krita. Dobiveni podaci su potom prikazani u grafovima kako bi se potvrdile očekivane ovisnosti dobivene iz izvedenih izraza. Linearizirani grafovi dobivenih podataka i objašnjenja istih daju odgovor na pitanje slažu li se očekivanja s rezultatima provedenog eksperimenta.

Abstract (english)

In this paper, we deal with one artefact in photography, the circle of confusion. The cause of this artefact are small particles out of focus when photographing the object. The aforementioned assumption was verified by an experiment that included photographing an object, a wire, at several distances with certain focal lengths. Diameter of a circle of confusion was determined from photographs using the tools of the graphics program Krita. The obtained data were then presented in graphs to confirm the expected dependencies obtained from derived expressions. The linearized graphs of the obtained data and their explanations provide an answer to the question of whether the expectations agree with the results of the conducted experiment.

• Keywords: promjer kruga zamućenja; bliža granica dubine polja; fokusna duljina; sustav leća
• Keywords (english): diameter of circle of confusion; near limit of depth of field; focal length; lens system
• Language: croatian
• URN:NBN: urn:nbn:hr:217:157565
• Study programme: Title: The Integrated University Undergraduate and Graduate Programme in Physics and Computer Science Education; specializations in: Physics and informatics; Course: Physics and informatics; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: sveučilišni magistar edukacije fizike i informatike (sveučilišni magistar edukacije fizike i informatike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-01-26 14:12:22