Importance of extended separation in NIR technology for secure secondary image identification, a survey
| Autor: | Ana Agić, Darko Agić, Klaudio Pap, Denis Jurečić |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
lcsh:NC1-1940
Reflection (computer programming) Computer science business.industry Separation (aeronautics) Image processing General Medicine CMYKIR separation NIR image ink carbon black adjusted achromatic interchange dual colors Image (mathematics) lcsh:Drawing. Design. Illustration Image identification RGB color model Computer vision Artificial intelligence business CMYKIR separation NIR image ink carbon black adjusted achromatic interchange dual colors |
| Zdroj: | Acta Graphica, Vol 29, Iss 2, Pp 19-26 (2018) Acta graphica : znanstveni časopis za tiskarstvo i grafičke komunikacije Volume 29 Issue 2 Acta Graphica, Vol 29, Iss 2, Pp 19-26 (2019) |
| ISSN: | 1848-3828 0353-4707 |
| Popis: | For separation purposes image information is usually defined as RGB record, what will be converted in CMY, CMYK or some other suitable image processing procedure, for reproduction purposes. Applying specific and dedicated NIR separation we developed, secondary achieved image is hidden and secured. NIR image is based on absorption diversities of used basic inks as well as other inks that should be separated. On that way we achieved optimal instrumental determining of secondary image. Basic postulate for effective CMYKIR separation and double image are twin dyes, theirs imposing and reflection differentiation of inks, that has to be carried out in an extended area. If differentiation is not managed properly, secondary image is not secured, and could appear incorrectly. Present photographic and printing options facilitate responsible and stable adjusting for steady double image recognition. We presented relevant NIR separation and twins principles at prepress/press stages for extended experience, and some considerable implementation of technological and scientific aspects. |
| Databáze: | OpenAIRE |
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