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Neugebauer and Demichel: dependence and independence in n-screen superpositions for colour printing

Related publications (34)

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Nanostencil and InkJet Printing for Bionanotechnology Applications

Jürgen Brugger, Oscar Vazquez Mena, Kristopher Pataky

In this contribution we describe the application of Ink-Jet printing and Stencil Lithography in bionanotechnology. Both techniques are alternative patterning methods that can be used for the fabrication of biocompatible micro- and nanostructures out of the ...

2009

Calibrating the ink spreading curves enhanced Yule-Nielsen modified spectral Neugebauer model with the two-by-two dot centering printer model

Roger Hersch, Romain Rossier

The Yule-Nielsen modified spectral Neugebauer model enhanced for accounting for ink spreading in the different ink superposition conditions (EYNSN) requires measuring the reflectances of halftone calibration patches in order to compute the ink spreading cu ...

2009

Evaluation of characterization methods of Printer MTF

Albrecht Johannes Lindner

We explore two recent methods for measuring the Modeling Transfer Function of a printing system. We investigate the dependency on the amplitude when using the sinusoidal patches of the method proposed in and show that for too small amplitudes the measureme ...

2008

Ink thickness variations for the control of color printers

Roger Hersch, Peter Amrhyn

The present invention proposes a method and a computing system for deducing ink thickness variations from spectral reflectance measurements performed on a printing press or on a printer. The computed ink thickness variations enable controlling the ink depo ...

2007

MICROFABRICATED MOLDS FOR INKJET APPLICATIONS

Jürgen Brugger, Vahid Fakhfouri, Kristopher Pataky, Yun Luo

Inkjet printing (IJP) is a contactless method of printing and has found wide applications in the packaging and printing industries. In order to get patterned micro-structures with specific morphology via inkjet technology, predefined molds from SU8 with di ...

2006

Spectral prediction and dot surface estimation models for halftone prints

Roger Hersch, Patrick Emmel, Frédérique Crété

We propose a new spectral prediction model as well as new approaches for modeling ink spreading which occurs when printing ink layer superpositions. The spectral prediction model enhances the classical Clapper-Yule model by taking into account the fact tha ...

SPIE-Int. Soc. Opt. Eng2003

A Prediction Model for Reflection on Varnished Metallic Plates

Roger Hersch, Mathieu Hébert, Patrick Emmel

Several models predict the reflectance of a rough metallic surface. They are however not adapted to the surfaces used in the packaging industry, such as boxes made of printed metallic plates. For printing purposes, metallic surfaces need to be varnished. L ...

Society for Imaging Science and Technology2002

Stochastic clustered-dot dithering

Roger Hersch

A new technique for building stochastic clustered-dot screens is being proposed. A large dither matrix comprising thousands of stochastically laid out screen dots is constructed by first laying out the screen dot centers. Screen dot centers are obtained by ...

SPIE-Int. Soc. Opt. Eng1999

Reproducing color images using custom inks

We investigate the general problem of reproducing color images on an offset press using custom inks in any combination and number. While this problem has been explored previously for the case of two inks, there are a number of new mathematical and algorith ...

ACM, New York, NY, USA1998

Stochastic clustered-dot dithering

Roger Hersch

SPIE-Int. Soc. Opt. Eng1998