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Sökning: onr:"swepub:oai:DiVA.org:liu-189566" > Angular dependent r...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003380naa a2200361 4500
001oai:DiVA.org:liu-189566
003SwePub
008221026s2022 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1895662 URI
040 a (SwePub)liu
041 a engb eng
042 9 SwePub
072 7a vet2 swepub-contenttype
072 7a kon2 swepub-publicationtype
1001 a Pranovich, Alina,d 1993-u Linköpings universitet,Medie- och Informationsteknik,Tekniska fakulteten4 aut0 (Swepub:liu)alipr65
2451 0a Angular dependent reflectance spectroscopy of RGBW pigments
264 1c 2022
338 a print2 rdacarrier
520 a Traditional printing relies primarily on subtractive color mixing techniques. In this case, optical color mixing is achieved by one of the established halftoning methods that use Cyan, Magenta, Yellow and Black (CMYK) primaries on a reflective white substrate. The reason behind the subtractive color mixing in printing is the high absorbance of available pigments used in inks. A new type of mica-based pigments that exhibit high reflectivity at Red, Green, Blue and White (RGBW) spectral bands was recently introduced by Merck (SpectravalTM). Printing with RGBW primaries on black background allows additive color mixing in prints. While offering excellent color depth, the reflected spectra of such pigments vary with the angles of incidence and observation. As a result, new approaches in modelling the appearance of prints as well as strategies for color separation and halftoning are needed. The prior optical characterization of the reflective inks is an essential first step. For this purpose, we have used SpectravalTM pigments to prepare acrylic based inks, which we applied on glass slides by screen printing. In this work, we measured the relative spectral bidirectional reflection distribution of Red, Green, Blue and White reflective inks. The measurements were conducted on an experimental set up consisting of a goniometer, spectrometer, and a xenon light source. Based on the measurements, we simulate the reflectance spectra under diffuse illumination and demonstrate ratios of red, green, and blue spectral components for different observation angles of individual inks and their combinations.
650 7a TEKNIK OCH TEKNOLOGIERx Annan teknikx Mediateknik0 (SwePub)211022 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Other Engineering and Technologiesx Media Engineering0 (SwePub)211022 hsv//eng
653 a RGB printing
653 a BRDF
653 a spectroscopy
653 a special effect inks
7001 a Trujillo Vazquez, Abigailu University of the West of England, United Kingdom4 aut
7001 a Nyström, Daniel,d 1974-u Linköpings universitet,Medie- och Informationsteknik,Tekniska fakulteten4 aut0 (Swepub:liu)danny19
7001 a Valyukh, Sergiy,d 1971-u Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten4 aut0 (Swepub:liu)serva66
7001 a Frisvad, Jeppe Revallu Technical University of Denmark, Denmark4 aut
7001 a Klein, Susanneu University of the West of England, United Kingdom4 aut
7001 a Parraman, Carinnau University of the West of England, United Kingdom4 aut
7102 a Linköpings universitetb Medie- och Informationsteknik4 org
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-189566

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