engleski

Picture information in expanded color management from visual to near infrared spectral domain

Extended color management is introduced for integrating colorants apsorptions characteristics in the visual spectrum (VS), but also in the near infrared spectrum (NIR). We are using this for goals: first, to create a double condition of graphic reproduction - invisible graphics to the human eye, but allowing to be registered by instrumental measuring in the NIR area. Second ; to design graphic elements that are not recognized in the NIR spectum, but are visible to the naked eye. And third: to produce a "double image" and „hidden image“ with conventional graphic inks. This approach introduces modified learning on graphic arts separation where two independent images are joined in creating CMYK printing channels. The second image as a gray record is the desired black component (K) in the first image. The standard color management ends in the visible space, but with the help of inks management, a second hidden image can be developed in the NIR space. Channel K (black) acquires a new meaning. It is the carrier of its own information in image and text form. We are introducing two states black dye: V-black and Z-black.

extended color management ; CMYKIR separation ; Z parametar ; near infrared spektrum ; hidden information ; V-black ; Z-black

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