Naslov
Matching colours in pictorial retouching: Influence of the three colour dimensions and colur distortion phenomena

Autori
Bailão, Ana ; Šustić, Sandra

Izvornik
Estudos conservação e restauro (1647-2098) 4 (2012); 14-28

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
colour matching; retouching; visual perception; simultaneous contrasts; afterimages; grey card

Sažetak
Our visual perception is strongly influenced by the anatomical structure of the eye and by lighting conditions. While looking at the painting, we perceive existing colour attributes, using retinal photoreceptors – cones – that serve our vision at higher luminance levels. Lighting, on the other hand, affects our colour discrimination as well as our perception of three dimensions of colour. During the retouching process our visual system can be affected by multiple optical impressions that many painting conservators are not fully aware of. Colour distortion phenomena can impact our observation stealthily, while producing simultaneous contrasts and afterimages that interfere with our colour discrimination as well as our decisions in pigment mixing. The aim of this paper is to analyse these optical properties and to provide practical guide- lines that will minimize colour distortion. One of the proposals is the use of 18% reflective grey card to cover adjacent colours around the paint loss. This method can be adopted as a helpful implement for tuning our colour perception

Izvorni jezik
Engleski

Znanstvena područja
Povijest umjetnosti, Znanost o umjetnosti

POVEZANOST RADA