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Hidden Information in Uniform Design for Visual and Near-Infrared Spectrum and for Inkjet Printing of Clothing on Canvas to Enhance Urban Security (CROSBI ID 306147)

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Žiljak Gršić, Jana ; Jurečić, Denis ; Tepeš Golubić, Lidija ; Žiljak, Vilko Hidden Information in Uniform Design for Visual and Near-Infrared Spectrum and for Inkjet Printing of Clothing on Canvas to Enhance Urban Security // Applied sciences (Basel), 12(4) (2022), 1-11. doi: 10.3390/app12042152

Podaci o odgovornosti

Žiljak Gršić, Jana ; Jurečić, Denis ; Tepeš Golubić, Lidija ; Žiljak, Vilko

engleski

Hidden Information in Uniform Design for Visual and Near-Infrared Spectrum and for Inkjet Printing of Clothing on Canvas to Enhance Urban Security

: In this paper, we publish the algorithm to create a dual image manifested in the infrared and visible spectrum. To distinguish the information in the two light spectra, twin dyes are intro‐ duced for the inkjet plotter and printing realization for garment and canvas items. The graphics, invisible to the naked eye, are designed for the near infrared (NIR) spectrum and are suitable for urban security where surveillance cameras with IR detectors are installed. The duality of dyes is presented in tables, and the analysis is a basis for programming and developing new algorithms for the application of “Infrared Dyeing” on different materials and printing technologies. Through spectroscopy, this innovative solution demonstrates twin colorants by printing in one pass through the plotter such that one image remains visible, while the other one is hidden to the bare eye. The uniform and the school bag cover presented in this paper are kept simple in design because they incorporate information hidden to the naked eye but visible with surveillance cameras and all the other infrared detectors. The article provides mathematical models of duality coloring as a basis for programming the graphic prepress that merges both of the images, the visual one and the infrared one. A topic is the fusion of two images with colors that represent two graphs, with independent contents for the visual and near‐infrared spectrum.

personal safety ; urban security ; dual surveillance cameras ; twin colors ; NIR spectroscopy

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Podaci o izdanju

12(4)

2022.

1-11

objavljeno

2076-3417

10.3390/app12042152

Povezanost rada

Dizajn, Informacijske i komunikacijske znanosti, Interdisciplinarne tehničke znanosti

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