Sökning: "Sasan Gooran"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden Sasan Gooran.

  1. 1. High quality frequency modulated halftoning

    Författare :Sasan Gooran; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : The fact that most printing devices, such as laser printers, are restricted to very few colors has led to an increased interest in finding efficient techniques that transform a continuoustone image into a binary one. Such techniques are referred to as halftoning methods. LÄS MER

  3. 2. 2D and 3D Halftoning for Appearance Reproduction

    Författare :Fereshteh Abedini; Sasan Gooran; Daniel Nyström; Jan Morovic; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The appearance of an object is determined by its chromatic and geometric qualities in its surrounding environment using four optical parameters: color, gloss, translucency, and surface texture. Reconstructing the appearance of objects is of great importance in many applications, including creative industries, packaging, fine-art reproduction, medical simulation, and prosthesis-making. LÄS MER

  4. 3. Automated CtP Calibration for Offset Printing : Dot gain compensation, register variation and trapping evaluation

    Författare :Shahram Hauck; Sasan Gooran; Björn Kruse; Peter Nussbaum; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Although offset printing has been and still is the most common printing technology for color print productions, its print productions are subject to variations due to environmental and process parameters. Therefore, it is very important to frequently control the print production quality criteria in order to make the process predictable, reproducible and stable. LÄS MER

  5. 4. Optical Document Security: Measurement, Characterization and Visualization : in the Light of Visual Evaluation

    Författare :Mikael Lindstrand; Björn Kruse; Sasan Gooran; Volker Lohweg; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Documents of high value, such as passports, tickets and banknotes, facilitate means for authentication. Authentication processes aim at mitigating counterfeit “passable products”. LÄS MER

  7. 5. Characterization of Halftone Prints based on Microscale Image Analysis

    Författare :Mahziar Namedanian; Sasan Gooran; Jon Yngve Hardeberg; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Ink spreading and lateral light scattering in the substrate affect the color of a halftone print. One of the most important phenomena which affects the print result is dot gain, meaning that printed dots appear larger than the dots in the digital bitmap. LÄS MER