Naslov
Developing a custom colour target for artwork imaging

Autori
Strgar Kurečić, Maja ; Agić, Darko ; Mandić, Lidija

Izvornik
Imaging science journal (1368-2199) 59 (2011), 6; 317-331

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

Ključne riječi
colour reproduction; custom colour reference target; digital camera characterization; device profile; artwork imaging

Sažetak
When characterizing digital camera for capturing art paintings, the standard targets are often used, resulting in unacceptable differences in reproducing some special colours, so additional time must be spent for visual editing and colour adjusting in various software applications. To avoid the need for excessive colour editing, and to improve workflow efficiency and colour accuracy, the special colour reference target for digital camera characterization was developed, applied and tested in these research. The object of digitalisation was paintings made with gouache paint, so two custom gouache reference targets with different numbers of colour samples (named CGRT24 and CGRT96) were created for digital camera colour characterization. The main criteria for construction of targets were defined, as the optimal studio conditions for digital image capture of art paintings. By analyzing the results gained with profiles testing, it was established that the errors in colour reproduction, which appear when using the standard targets (GretagMacbeth ColorChecker and ColorChecker DC) was decreased when using the developed CGRT targets for digital camera characterization. Also, it was found out that the larger number of colour samples on target does not guarantee the more accurate camera profile. The results show that the colorimetric property of colour samples are more important than the number of samples and proves that there is a benefit of developing the custom target tailored to the specific need.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

POVEZANOST RADA