Colorimetric- and spectral-based printing: a simple comparison

17 January 2005 Colorimetric- and spectral-based printing: a simple comparison

Silvia Zuffi

Proceedings Volume 5667, Color Imaging X: Processing, Hardcopy, and Applications; (2005) https://doi.org/10.1117/12.586960
Event: Electronic Imaging 2005, 2005, San Jose, California, United States

Abstract

The majority of papers illustrating the advantages of multispectral approaches in color imaging consider metamerism reduction as the main reason of turning, in the next years, from colorimetric imaging and reproduction to multispectral. Doubtless, if spectral match is the reproduction criterion, and if this is accomplished with sufficient accuracy, originals and reproductions match, visually, even if viewing conditions change. It follows that, in practical applications, the spectral-based approach is advantageous whenever the viewing conditions are unknown. From a theoretical viewpoint, metamerism-free reproductions have a considerable advantage vis-à-vis traditional prints. In practice, the measurability of such advantage rests on the possibility of a comparison between the original image and the corresponding reproduction, which, in turn, should quantify the ability of the observer to discover the mismatch. In this work, we compare results of colorimetric and spectral-based reproductions of single color patches in print. We consider a four ink printer, which we characterize colorimetrically and spectrally. Then, we perform a set of experiments. Test colors are reproduced using colorimetric and multispectral strategies. We compare the results obtained through measurements. The aim of our work is to discuss possible advantages or disadvantages of the spectral-based reproduction with respect to colorimetric reproduction for single colors.

Citation Download Citation

Silvia Zuffi "Colorimetric- and spectral-based printing: a simple comparison", Proc. SPIE 5667, Color Imaging X: Processing, Hardcopy, and Applications, (17 January 2005); https://doi.org/10.1117/12.586960

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