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Acta graphica : journal for printing science and graphic communications, Vol.27 No.1 May 2016. -

The aim of the present study was to analyze the display of colors in digital projection. For this purpose the digital projector NEC NP210 was used. The measurements were performed in accordance with the instructions and recommendations of ISO standards. Our goal was to research the creation of color profile of the projector using a EyeOne Pro spectrophotometer and to establish whether the size of color gamut of standardized sRGB color space can be reached by characterization of the digital projector modules. By using the color chart Color Checker Classic, the photometric and colorimetric accuracy of the characterized and uncharacterized projection were evaluated. In the final part of the research, comparison between the colorimetric accuracy of the computer screen and the digital projector was performed.

The results showed that by module characterization of the NEC NP210 Movie projector in studio conditions, the same size of the color space could not be achieved as by using the default sRGB module. Evaluation of colorimetric accuracy by using the digitalized color chart Color Checker Classic provides usable results, especially when the display of chromatic colors with emphasis on skin tones, and achromatic colors with emphasis on grey balance or chromaticity respectively, were examined. Based on the obtained results of the computer screen and digital projector comparison, it could be concluded that both compared computer screens match the standards. Overall, the NEC NP210 projector with the sRGB default module without profile could be also used if necessary. Thus, we can sum up that digital projection displaying standardized sRGB color space could not be comparable to a high quality CRT or LCD computer screen.

digital projector; color space; color display; characterization



Autor: Iva Molek - ; The Secondary School of Multimedia and Graphic Technology Ljubljana, Pokopališka 33, 1000 Ljubljana, Slovenia Dej

Fuente: http://hrcak.srce.hr/



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