• the increasing need to use perceptual coordinate systems
• the spectral sampling systems of acquisition devices or synthesis models and the approximations caused by using only three primaries
• the accuracy of color coordinate transformations
• the difficulty of assessing which of these, or other, factors cause perceived problems in color presentation and reproduction
Phil Robertson is General Manager of Research and Development at Canon Information Systems Research Australia, one of Canon's international research centers. He was previously Program and R&D Strategies Manager at the CSIRO Division of Information Technology and has taught computer science and engineering in several universities.Robertson has a PhD in computer science from the Australian National University and has published widely in image processing, graphics, color, and visualization. He has served on program and technical committees for international conferences in these fields. He has also served on the editorial boards of IEEE TVCG, IEEE CG&A, and Computers and Graphics.
Jürgen Schönhut is head of the Document Imaging department at the Fraunhofer Institute for Computer Graphics (Fraunhofer Institut für Graphische Datenverarbeitung, or IGD) in Darmstadt, Germany. He obtained a PhD in 1972 in computational linguistics.Schönhut authored Document Imaging—Computer Meets Press (Springer Verlag, 1997). He served as chair of Eurographics from 1991 to 1992, and as chair of ISO JTC1/SC24 Computer Graphics from 1983 to 1990. He has directed the scientific work of the CIP3 consortiums (International Cooperation for Integration of Prepress, Press, and Postpress) since the end of 1993, pursuing computer-integrated manufacturing of print products.