Chromaticity gamut enhancement by heptatone multicolor printing

Victor Ostromoukhov

doi:10.1117/12.149036

4 August 1993 Chromaticity gamut enhancement by heptatone multicolor printing

Victor Ostromoukhov

Proceedings Volume 1909, Device-Independent Color Imaging and Imaging Systems Integration; (1993) https://doi.org/10.1117/12.149036
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1993, San Jose, CA, United States

Abstract

The present paper studies the chromaticity gamut of multi-color printing processes. Heptatone (7-color) printing - the most promising variant of multi-color printing - offers a significantly larger gamut than a conventional CMYK printing process, approaching CRT and film gamuts. The behavior of the process in the device-independent CIE-XYZ and CIE-L*u*v* colorimetric spaces is explored using the compound Neugebauer model developed for this purpose. A simple and straightforward Moire-free separation process is proposed. The strong point of the proposed separation process is the fact that only 3 different screen layers are needed for any odd number of basic colors including black.

Citation Download Citation

Victor Ostromoukhov "Chromaticity gamut enhancement by heptatone multicolor printing", Proc. SPIE 1909, Device-Independent Color Imaging and Imaging Systems Integration, (4 August 1993); https://doi.org/10.1117/12.149036

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