Prikaz osnovnih podataka o dokumentu
Perceptivni efekti degradacije slike
Perceptive effects of image distortion
dc.creator | Gvozdenović, Vasilije | |
dc.date.accessioned | 2021-10-12T10:23:35Z | |
dc.date.available | 2021-10-12T10:23:35Z | |
dc.date.issued | 2000 | |
dc.identifier.issn | 0048-5705 | |
dc.identifier.uri | http://reff.f.bg.ac.rs/handle/123456789/339 | |
dc.description.abstract | Ispitivana je perceptivna osetljivost na promene u kvalitetu vizuelne stimulacije. Kao sredstvo variranja kompleksnosti stimulacije korišćen je JPEG filter primenjen na kompjuterskim slikama koje su bile stimulusi u dva eksperimenta. U prvom eksperimentu ispitanici su na skali kvaliteta procenjivali efekte degradacije na tri fotografije različite perceptivne kompleksnosti. Ustanovljena je negativna korelacija između stepena degradacije slike i procene kvaliteta, a faktor kompleksnosti slike se pokazao kao značajan. U drugom eksperimentu korišćen je zadatak vizuelne diskriminacije. Ispitanici su diskriminisali parove fotografija sačinjene od jedne nedegradirane fotografije i jedne degradirane u različitom stepenu. Stepen degradacije je išao od jedne do deset JPEG jedinica. Analize pokazuju da je faktor kompleksnosti značajan i da uspeh u vizuelnoj diskriminaciji varira u funkciji razlike kvaliteta fotografija u paru. | sr |
dc.description.abstract | In the present study perceptive tolerance on image distortion was investigated. JPEG filer was used as a tool for degrading computer images, which were presented in two experiments. In the first experiment, subjects were estimating the effects of distortion on three images with different perceptive complexity. Regression analysis suggests that the distortion (JPEG quality) factor is a good predictor of estimated quality. The greater JPEG quality factor, the lower estimated quality of distorted image. In the second experiment, visual discrimination task was used. Subjects were discriminating pair of images (same / different) made by original, not distorted and distorted image with a different JPEG quality factor. Ranges of JPEG quality factor varied from one to ten JPEG units. Analyses shows that the factor of image complexity was statistically significant, indicating that visual discrimination is dependent on quality difference between images. | en |
dc.publisher | Društvo psihologa Srbije, Beograd | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by-sa/4.0/ | |
dc.source | Psihologija | |
dc.subject | spacijalna frekvenca | sr |
dc.subject | procena kvaliteta | sr |
dc.subject | perceptivna diskriminacija | sr |
dc.subject | informaciona kompleksnost | sr |
dc.subject | degradacija slike | sr |
dc.subject | spatial frequency | en |
dc.subject | quality estimation | en |
dc.subject | perceptual discrimination | en |
dc.subject | informational complexity | en |
dc.subject | image degradation | en |
dc.title | Perceptivni efekti degradacije slike | sr |
dc.title | Perceptive effects of image distortion | en |
dc.type | article | |
dc.rights.license | BY-SA | |
dc.citation.epage | 292 | |
dc.citation.issue | 1-2 | |
dc.citation.other | 33(1-2): 269-292 | |
dc.citation.spage | 269 | |
dc.citation.volume | 33 | |
dc.identifier.fulltext | http://reff.f.bg.ac.rs/bitstream/id/1921/336.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_reff_339 | |
dc.type.version | publishedVersion |