Quantitative evaluation of misregistration-induced color shifts in color halftones

Basak Oztan; Gaurav Sharma; Robert P. Loce

doi:10.1117/12.585072

17 January 2005 Quantitative evaluation of misregistration-induced color shifts in color halftones

Basak Oztan, Gaurav Sharma, Robert P. Loce

Proceedings Volume 5667, Color Imaging X: Processing, Hardcopy, and Applications; (2005) https://doi.org/10.1117/12.585072
Event: Electronic Imaging 2005, 2005, San Jose, California, United States

Abstract

Color-to-color misregistration refers to misregistration between color separations in a printed or display image. Such misregistration in printed halftoned images can result in several image defects, a primary one being shifts in average color. The present paper examines the variation in average color for two-color halftoned images as a function of color-to-color misregistration distance. Dot-on-dot/dot-off-dot and rotated dot screen configurations are examined via simulation and supported by print measurements. The color and color shifts were calculated using a spectral Neugebauer model for the underlying simulations. As expected, dot-on-dot/dot-off-dot color shifts were very high, while rotated dots screens exhibited very little color shift under the present idealized conditions. The simulations also demonstrate that optical dot gain significantly reduces the color shifts seen in practice.

Citation Download Citation

Basak Oztan, Gaurav Sharma, and Robert P. Loce "Quantitative evaluation of misregistration-induced color shifts in color halftones", Proc. SPIE 5667, Color Imaging X: Processing, Hardcopy, and Applications, (17 January 2005); https://doi.org/10.1117/12.585072

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