izvorni znanstveni rad
Security graphics is an area that requires research and continuous development. The goal is to obtain top-quality security through design, individualization and innovations in graphic technology. In practice up to date security graphics have developed by applying special toners or extreme printing techniques reserved only for security printing, as for instance Infrared toners, UV toners, intaglio printing, steel die printing, security paper, kinegram. Designers usually remain in the area of graphics that are visible in daylight. Securities experts perform additional mixing of colors that alter under UV light. Knowledge on the printing colors IR system is a new area in the printing business. The area of software designing has been opened, purpose designing and coded graphic product security. Studying the characteristics of many colors in IR radiation has started programming of security graphics in a new way. Collaborators in this assignment have developed algorithms of dual separation in the visible RGB system for graphic prepress of spot and process toners using information on light response in the IR area.
colour control, dual separation, daylight, infrared, security graphics
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