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https://doi.org/10.25027/agj2017.28.v30i1.205

Magenta and alternative red colour spectroscopy on nautical charts in the visible and near-infrared electromagnetic spectrum

Tonći Jeličić   ORCID icon orcid.org/0000-0001-7129-0541 ; Hydrographic Institute of the Republic of Croatia, Split, Croatia
Jana Žiljak-Gršić   ORCID icon orcid.org/0000-0002-1190-5003 ; University of Applied Sciences, Zagreb, Croatia
Damir Modrić ; Faculty of Graphic Arts, University of Zagreb, Zagreb, Croatia

Puni tekst: engleski, pdf (6 MB) str. 1-13 preuzimanja: 0* citiraj
APA 6th Edition
Jeličić, T., Žiljak-Gršić, J. i Modrić, D. (2019). Magenta and alternative red colour spectroscopy on nautical charts in the visible and near-infrared electromagnetic spectrum. Acta graphica, 30 (1), 1-13. https://doi.org/10.25027/agj2017.28.v30i1.205
MLA 8th Edition
Jeličić, Tonći, et al. "Magenta and alternative red colour spectroscopy on nautical charts in the visible and near-infrared electromagnetic spectrum." Acta graphica, vol. 30, br. 1, 2019, str. 1-13. https://doi.org/10.25027/agj2017.28.v30i1.205. Citirano 11.04.2021.
Chicago 17th Edition
Jeličić, Tonći, Jana Žiljak-Gršić i Damir Modrić. "Magenta and alternative red colour spectroscopy on nautical charts in the visible and near-infrared electromagnetic spectrum." Acta graphica 30, br. 1 (2019): 1-13. https://doi.org/10.25027/agj2017.28.v30i1.205
Harvard
Jeličić, T., Žiljak-Gršić, J., i Modrić, D. (2019). 'Magenta and alternative red colour spectroscopy on nautical charts in the visible and near-infrared electromagnetic spectrum', Acta graphica, 30(1), str. 1-13. https://doi.org/10.25027/agj2017.28.v30i1.205
Vancouver
Jeličić T, Žiljak-Gršić J, Modrić D. Magenta and alternative red colour spectroscopy on nautical charts in the visible and near-infrared electromagnetic spectrum. Acta graphica [Internet]. 2019 [pristupljeno 11.04.2021.];30(1):1-13. https://doi.org/10.25027/agj2017.28.v30i1.205
IEEE
T. Jeličić, J. Žiljak-Gršić i D. Modrić, "Magenta and alternative red colour spectroscopy on nautical charts in the visible and near-infrared electromagnetic spectrum", Acta graphica, vol.30, br. 1, str. 1-13, 2019. [Online]. https://doi.org/10.25027/agj2017.28.v30i1.205

Sažetak
The International Hydrographic Organization (IHO) publishes Regulations and Technical specifications for the official nautical charts in order to standardize the use of colours to all hydrographic offices of IHO Member States. The use of magenta is reserved for highlighting, drawing attention and to distinguish information to elements of a chart of maritime importance and it is necessary to ensure its visibility.So far, there is no information on the spectrographic composition of colours intended to highlight specific content. For the first time, spectroscopy of magenta and alternative red colour is performed on the charts of hydrographic offices that have officially published colour compositions. Spectroscopy extends beyond the visible area to the near-infrared part of the electromagnetic spectrum. The article presents the absorption curves of magenta and red colour that contain information on the spectrographic composition of these colours in the visible and near-infrared spectrum. The purpose of the study is to show what proportion of black colour added to magenta or red can give positive response or positive absorption properties in the near-infrared part of the spectrum. The results are also part of preparatory research aimed at introducing colour twins, a system of hidden graphical elements designed to protect nautical charts from forgery and to expand their information content.

Ključne riječi
nautical charts, spectroscopy, magenta-M, red-R, visible spectrum-V (VIS), near-infrared spectrum-Z (NIR)

Hrčak ID: 255380

URI
https://hrcak.srce.hr/255380

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