Research »

 

The staff at Voxvil AB is active in the research group Paper Optics & Color at Mid Sweden University. It is important to us to be involved in the very forefront of our research areas as expert knowledge is our most valuable asset. Our research interest involves paper optics, image quality, colour science and digital printing. We carry out our research at the Digital Printing Centre at Mid Sweden University, www.miun.se/dpc

 

 

 

Spectral Printing »

 

Colour reproduction methods of today do not try to reproduce the original spectral distribution of the original colours. Instead, they make use of the fact that the eye and the brain perceive colour via three sensitivity functions. In order to get correct colour impression, it is therefore sufficient that the reproduced colour gives the same response in the brain as the original colour. However, an important limitation with this method is that it is only valid for a given viewing condition. If the viewing situation is changed (for example if the light source is changed from daylight to indoor illumination), there is a large risk that the colours are perceived differently, this phenomenon is known as metamerism. Furthermore, colour control systems of today rely on physical colour measurements, which make the colour reproduction valid only when the viewing conditions coincide with the colour measurement setup. In practice this is seldom the case. These limitations give large problems for applications that put high demands on correct colour reproduction. Examples of such applications are proof printing and high quality packages and catalogues.

 

 

 

Voxvil is a full member of the EU-funded Marie Curie Initial T raining Network project Colour Printing 7.0: Next Generation Multi-Channel Printing (CP7.0) (Project web site www.cp70.org).

 

 

 

 

 

 

 

 

 

 

 

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