Naslov
Reproduction of art paintings with their status in the near infrared spectrum

Autori
Žiljak-Stanimirović, Ivana ; Žiljak-Vujić, Jana ; Hoić, Ana

Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, znanstveni

Knjiga
Advances in Printing and Media Technology

Urednik/ci
Enlund, Nils ; Lovreček, Mladen

Izdavač
International Association of Research Organizations for the Information, Media and Graphic Arts Industries

Grad
Darmstadt

Godina
2012

Raspon stranica
123-127

ISBN
978-3-9812704-5-7

Ključne riječi
Infrared technology, Art reproduction, CMYKIR separation, Z value of infrared, Safety in painting, Hidden painting

Sažetak
Each work of art has its own specific response in the infrared spectrum. An artist's paints have different response characteristics in the infrared spectrum. Process inks in printing reproduction also have different properties in the infrared spectrum. The initial assertion in this paper is that the infrared status of a work of art can be reproduced with RGB I CMYKIR separation. The target is to have the reproduction and the original work be equated to the utmost extent in the visual and infrared spectrum. This initiates discussion on the necessity to extend "conventional color management" to the range of 400 to I 000 nanometers. The RGB experience of reproduction extends the zero separation rules with the addition of Z separation. Each RGB picture pixel is calculated in the CMYK conversion respecting the independent pixel value in the Z picture. CMYK become mutually dependent values but with the goal for carbon K to be closest to the Z status of the work of art's infrared value. Channel K acquires a new meaning. It is a separate picture, the picture observed by the infrared camera. In future artists will deliberately paint double pictures, one for the visual and the other for the infrared area. Printers and graphic designers will face a new task: to interpret a work of art in such a way that the reproduction has separate states in the visual and infrared spectrum.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija, Računarstvo

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