In April 2015, CP7 researcher Teun Baar visited the Fraunhofer-Institute Darmstadt as part of his secondment. During the visit, a psychophysical experiment was conducted to assess the influence of texture on the perception of gloss and visa versa, using printed samples. The aim of the research was to acquire an improved understanding of the perception of these two aspects for 3D printed samples of which the gloss level was controlled.
CP7 researcher Paula Žitinski Elías from LiU, Sweden had a short secondment visit to Gjøvik University College in March 2015. During this visit Paula closely worked with Radovan Slavuj and Luddovic Coppel from CP7.0, and had meetings with several other members of the Norwegian Colour and Visual Computing Laboratory at GUC. Paula is currently working with colour models for multi-channel printing and image quality assessment.
In September, CP7 researcher Ludovic Gustafsson Coppel from Gjøvik University College visited the University of the West of England, Bristol, and Fraunhofer Institute for Computer Graphics Research IGD, Darmstadt, as part of his secondments. The aim of the visit was to model the light reflection from layered materials in two different applications: multi-layered coloured prints with inkjet printer to improve colour output of original artwork (in collaboration with ESR Melissa Olen in Bristol) and colour management in 3D colour printing.
Early September, CP7 researcher Teun Baar from Océ Print Logic Technologies visited the University of the West of England as part of his secondment. During the secondment, relief stamps were made for the application of relief printing. The stamps were created using 3D printers and wood engraving machines. The aim of the research was to compare the limitations and advantages of each of the processes and suitability to creating Chiaroscuro relief prints.
CP7 researcher Sepideh Samadzadegan from TUD, Darmstadt visited Océ Print Logic Technologies SA in July, 2014 on 2 weeks secondment with the aim of collaborating with ESR 6 and scitentist-in-charge Maria V. Ortiz Segovia to Control colour-printed gloss by varnish-halftones. Sepideh’s research involves spectral gamut mapping which could be more complicated when another attribute such as “gloss” is considered along with the process inks. During the secondment Sepideh focused on printing colour-printed gloss to investigate the colour-gloss relation by conducting psychophysical experiments.
CP7 researcher Radovan Slavuj from GUC, Gjøvik visited associate partner Fraunhofer FOKUS for a 3 weeks secondments with the aim to work and collaborate with scientist Dr. Jeremie Gerhardt at FOKUS on inverse printer models and halftoning for multi-channel printing. Radovan’s research involves inverse printer models and integration with halftoning. Through this secondment Radovan focused on optimising these printer and halftoning models for multi-channel printing environment.
CP7 experienced researcher Steven Le Moan from TUD, Germany visited Gjøvik University College on a 3 week secondment to use the Colorlab’s equipment and expertise to make hyper spectral acquisitions of different scenes and objects with the aim to generate a spectral image database. Steven collaborated with researchers from Gjøvik University College (Dr. Sony George and PhD student Ruven Pillay) in acquiring the images. This secondment provided Steven with an opportunity to work and experience with hyper-spectral acquisitions and collaborate outside the CP7 project. In the near future, the work should result in a publication describing the database.