Naslov
Psychophysical study of colour

Autori
Parac-Osterman, Đurđica ; Hunjet, Anica ; Burušić, Josip

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Color and Paints (AIC 2004) : Book of Papers / Caivano, Jose - Porto Alegre : Brasilian Color Association, 2004

Skup
Color and Paints

Mjesto i datum
Porto Alegre, Brazil, 2004

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
colour; constant stimuli; visual response; CIELAB

Sažetak
Colour plays an important role in many practical tasks related to choice, identification, and as linguistic elements of the visual communication system. Colour memory is also one of the factors responsible for the phenomenon of colour constancy. Psychophysical methods and procedures are useful in determining threshold, including visual field analysis. A psychophysical experiment was carried out for describing colour appearance under different viewing conditions. Measurement of visual response can be achieved through several methods. In this paper the method of constant stimuli is applied. Analysis were made on the base of comparisons with visual evaluation as well as instrumental CIE L*a*b* evaluation (L*, C* and H* colour values). Yellow and blue hues were the chosen samples. Yes or No response presents a stimulus. Correct response can range from 0% to 100% as shown as stimulus intensity vs. percentage seen. The results obtained, presented in a CIE L*a*b* through C*/L* and a*/b*, showed more disagreement of visual evaluation compared with instrumental evaluation in the area of yellow than blue.

Izvorni jezik
Engleski

Znanstvena područja
Povijest

POVEZANOST RADA