Linköping University. Reinventing research and education

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1 Linköping University Reinventing research and education

2 Linköping University Department of Science and Technology (ITN) Media and Information Technology (MIT) Image Reproduction & Graphic Design

3 Linköping & Norrköping Norrköping 130,000 inhabitants Linköping 145,000 inhabitants

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6 Our campuses Campus Valla, Linköping, 19,000 students Campus Norrköping, 5,500 students Campus US (University Hospital), Linköping, 3,000 students 6

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10 LiU in outline Students 27,300 Employees 3,900 Income total, msek 3, m (46% Education, 54% Research)

11 LiU staff

outgoing from LiU every year through different

12 An international university 1,500 international students from 70 different countries 570 students outgoing from LiU every year through different exchange programmes 500 partner universities in more than 50 countries

13 Four faculties Arts and Sciences Educational Sciences Health Sciences Institute of Technology

(ISY) Management and Engineering (IEI) Mathematics (MAI) Medical and Health Sciences (IMH) Physics, Chemistry and Biology

14 Fourteen multidisciplinary departments Behavioural Sciences and Learning (IBL) Biomedical Engineering (IMT) Clinical and Experimental Medicine (IKE) Computer and Information Science (IDA) Culture and Communication (IKK) Electrical Engineering (ISY) Management and Engineering (IEI) Mathematics (MAI) Medical and Health Sciences (IMH) Physics, Chemistry and Biology (IFM) Science and Technology (ITN) Social and Welfare Studies (ISV) Studies of Social Change and Culture (ISAK) The Tema Institute

15 Department of Science and Technology (ITN), Norrköping 180 Employees Campus Norrköping 3 Divisions Division of Physics and Electronics Communications and Transport Systems Media and Information Technology

Design Visual Interactive Data Analysis Computer Graphics and Image Processing

16 Media and Information Technology (MIT) 70 Employees 8 Research Groups Scientific Visualization Information and Geo Visualization Image Reproduction and Graphics Design Visual Interactive Data Analysis Computer Graphics and Image Processing Sound and Video Technology Structural and Civil Engineering Visual Learning and Communication

Image Reproduction & Graphic Design Sasan Gooran

Associate) Mahziar Namedanian (PhD student) Yuan Yuan Qu

Hauck (Industrial PhD student) Björn Kruse (Professor

17 Image Reproduction & Graphic Design Sasan Gooran (Associate Professor) Daniel Nyström (Research Associate) Mahziar Namedanian (PhD student) Yuan Yuan Qu (PhD student) Paula Žitinski Elías (PhD student) Shahram Hauck (Industrial PhD student) Björn Kruse (Professor Emeritus) 4 Teachers in graphic design, information design and communication

18 Digital Halftoning Sasan Gooran High quality Iterative FM Halftoning Dependent Halftoning Using dot-off-dot as much as possible, which reduces the color noise Reducing Ink consumption Hybrid Halftoning Combining AM and FM (FM highlights and shadows) Useful for Flexography Second generation FM halftoning Building threshold matrices by an iterative technique High speed, high quality

19 Daniel Nyström Colorimetric and multispectral image acquisition Calibration and characterization of an image acquisition system Aim: combining spatial resolution with accurate color measurements Microscopic color measurements Measure and characterize color prints on microscopic level Separating physical and optical dot gain Halftone color reproduction models

Mahziar Namedanian PaperOpt Modeling of the Paper Optical System from Components to finished prints Mid Sweden University Innventia Karlstad University Linköping University

20 Mahziar Namedanian PaperOpt Modeling of the Paper Optical System from Components to finished prints Mid Sweden University Innventia Karlstad University Linköping University Halftone modeling and model verification Separating physical and optical dot gain Ink behavior and dot gain for different paper grades Optical dot gain for different halftone dot shapes

21 Yuan Yuan Qu Color prediction models Color Prediction Model based on CIEXYZ using an effective coverage map (using 3 characterized dot gain curves based on CIEXYZ values) Spectral color prediction model Colorant separation for multicolorant printers (CMYKcy) Estimation of the surface structure of Paper 3D surface estimation of newsprint from microscopic images

22 Shahram Hauck Automated CtP Calibration System Trapping formula based on reflectance spectra ΔE ab value instead of a percentage value Surface effect and Ink penetration taken into account Method to determine register variation Simple but effective model using spectrophotometry tool The results are close to those of Image processing tools, which are expensive

23 Undergraduate programs Media Technology 300 ECTS 60 students/year Graphic Design and Communication 180 ECTS 60 students/year Advanced Computer Graphics 120 ECTS 10 students/year International master s program

24 Norrköping Visualization Center C Norrköping city Linköping University Norrköping Science Park Interactive Institute

High Resolution Analysis of Optical and Physical Dot Gain

High Resolution Analysis of Optical and Physical Dot Gain Mahziar Namedanian* and Sasan Gooran* Keywords: Optical Dot Gain, Physical Dot Gain, Micro-Scale Images, Transmittance, Reflectance Abstract: The