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Predicting reflectances of Neugebauer primaries by relying on separately measured ink transmittances

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Modern printers allow printing on different paper types with many different coloured inks. Therefore, predicting the reflectances of paper printed with solid inks and ink superpositions (Neugebauer primaries) is of high importance. Given the separately measured transmittance of an ink and the reflectance of a white diffusing background, we try to predict the reflectance of the inked white diffusing background by relying on a modified Saunderson formula accounting for the differences in the measurement geometries when performing transmittance and reflectance measurements. Accurate reflectance predictions are obtained for the cyan and magenta ink patches as well as for their ink superpositions. Less accurate predictions are obtained for the yellow ink patches or for ink superpositions incorporating the yellow ink. We suspect that the yellow ink layer is at the origin of optical phenomena which behave differently in reflectance and transmittance modes, and therefore allow less accurate predictions.
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Document Type: Research Article

Publication date: January 1, 2012

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  • Started in 2002 and merged with the Color and Imaging Conference (CIC) in 2014, CGIV covered a wide range of topics related to colour and visual information, including color science, computational color, color in computer graphics, color reproduction, volor vision/psychophysics, color image quality, color image processing, and multispectral color science. Drawing papers from researchers, scientists, and engineers worldwide, DGIV offered attendees a unique experience to share with colleagues in industry and academic, and on national and international standards committees. Held every year in Europe, DGIV papers were more academic in their focus and had high student participation rates.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual papers for details.

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