Yule-Nielsen based recto-verso color halftone transmittance prediction model

Mathieu Hébert (1) , Roger D. Hersch (2)

1 LHC - Laboratoire Hubert Curien
2 Peripheral Systems Laboratory

The transmittance spectrum of halftone prints on paper is predicted thanks to a model inspired by the Yule-Nielsen modified spectral Neugebauer model used for reflectance predictions. This model is well adapted for strongly scattering printing supports and applicable to recto-verso prints. Model parameters are obtained by a few transmittance measurements of calibration patches printed on one side of the paper. The model was verified with recto-verso specimens printed by inkjet with classical and custom inks, at different halftone frequencies and on various types of paper. Predictions are as accurate as those obtained with a previously developed reflectance and transmittance prediction model relying on the multiple reflections of light between the paper and the print-air interfaces. Optimal n values are smaller in transmission mode compared with the reflection model. This indicates a smaller amount of lateral light propagation in the transmission mode.

Mots clés: Transmittance; halftone; printing; color; prediction

Domaines: Optique / photonique

Mathieu Hébert, Roger D. Hersch. Yule-Nielsen based recto-verso color halftone transmittance prediction model. Applied optics, 2011, 50 (4), pp.519-525. ⟨hal-00559756⟩