2007 | 5 Themenheft

Browsing 2007 | 5 Themenheft by Subject "digital image"

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  • Article
    Computational Visualistics and Picture Morphology – An Introduction
    Schirra, Jörg (2007) , S. 1-22
    Pictures have to be formalized digitally in an adequate manner when computer scientists are to work with them. It is mainly the relevant physical properties of the corresponding picture vehicle that have to be considered in that formalization: that is, the picture syntax. The present special issue of IMAGE deals in particular with morphological questions taking the specific, formalizing perspective of computational visualistics. It is also intended as the attempt to offer a clear and easily understandable summary of the state of the art of research on picture morphology in computational visualistics for picture scientists of the other disciplines. As an introduction, the relations between computer science, general visualistics, syntax studies, and morphology are examined.
  • Article
    Syntactic Structures in Graphics
    Engelhardt, Yuri (2007) , S. 23-35
    Building upon the existing literature, we are suggesting to regard the building blocks of all graphics as falling into three main categories: a) the graphic objects that are shown (e.g. a dot, a pictogram, an arrow), b) the meaningful graphic spaces into which these objects are arranged (e.g. a geographic coordinate system, a timeline), and c) the graphic properties of these objects (e.g. their colors, their sizes). We suggest that graphic objects come in different syntactic categories, such as nodes, labels, frames, links, etc. Such syntactic categories of graphic objects can explain the permissible spatial relationships between objects in a graphic representation. In addition, syntactic categories provide a criterion for distinguishing meaningful basic constituents of graphics. Based on the above, we discuss how the concept of syntactics can be applied to graphics. Finally we distinguish different types of meaningful graphic spaces that can be used to construct graphics. Throughout the paper we relate our proposals to the relevant existing literature.