Subjektivna i objektivna evaluacija utjecaja zasićenja i vrste boje na kvalitetu slike

master's thesis

• Title (english): Subjective and objective evaluation of color saturation and hue effects on image quality
• Author: Ema Popović
• Mentor: Sonja Grgić (mentor)
• Committee member: Sonja Grgić (predsjednik povjerenstva)
• Committee member: Jelena Božek (član povjerenstva)
• Committee member: Josip Vuković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2023-02-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

Zasićenje opisuje čistoću boje izvora svjetlosti. Vrsta boje određena je dominantnom valnom duljinom izvora svjetlosti. Zasićenje i vrsta boje značajke su slike koje znatno utječu na percepciju scene. U radu je promatran utjecaj promjene zasićenja i vrste boje na kvalitetu slike. Objašnjeni su pojmovi i vrste subjektivne i objektivne evaluacije kvalitete slike. Dan je pregled odabranih metoda za objektivnu evaluaciju kvalitete – MSE, PSNR, SSIM, CER, UCIQE, UIQM i CCF. Opisani su prostori boja u kojima je provedena objektivna evaluacija – RGB, YUV i CIELAB. Stvorena je baza slika s modificiranim zasićenjem i vrstom boje. Nad bazom je provedena subjektivna i objektivna evaluacija kvalitete slike. Uspoređeni su rezultati i učinkovitost metoda.

Abstract (english)

Saturation describes the color purity of a light source. Hue is decided by dominant wavelength of a light source. Saturation and hue are image characteristics that significantly affect the perception of a scene. This paper observes the impact of changing the hue and the saturation of an image. Concepts and types of subjective and objective image quality assessment methods are explained. An overview is given of the chosen methods for objective quality evaluation – MSE, PSNR, SSIM, CER, UCIQE, UIQM and CCF. The color spaces in which the objective evaluation was carried out are described - RGB, YUV and CIELAB. A database of images with modified saturation and hue was created. A subjective and objective evaluation of image quality was performed on the database. The results and efficiency of the methods are compared.

• Keywords: kvaliteta slike; zasićenje boje; vrsta boje; prostor boja; subjektivna evaluacija; objektivne metode; MSE; PSNR; SSIM; CER; UCIQE; UIQM; CCF
• Keywords (english): image quality; color saturation; hue; color space; subjective evaluation; objective measures; MSE; PSNR; SSIM; CER; UCIQE; UIQM; CCF
• Language: croatian
• URN:NBN: urn:nbn:hr:168:825572
• Study programme: Title: Computing; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka računarstva (magistar/magistra inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-07-13 10:29:36