Chapter 4 Graphics and Images

Graphics and images are both non-textual information that can be displayed and printed. They may appear on screens as well as on printers but cannot be displayed with devices only capable of handling characters. This chapter discusses computerized graphics and images, their respective properties, and how they can be acquired, manipulated, and output on computers. This introductory discussion includes options to represent and process graphics and images on computers, some important formats, and automatic content analysis. (Chapter 9 describes how picture and image contents are processed.) Building on this introduction, we explain methods used to retransform two-dimensional images into three-dimensional space. Finally, ...

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