Patterns and Pictures

Copyright (c) Susan Laflin. August 1999.

For the full detail of this area, you will have to turn to the literature on image-processing. However some discussion of this is relevant to Computer Graphics. For example, in GKS, the "cellarray" primitive may be used to provide limited facilites for defining and using small patterns or images.

Introduction

The first section includes bit-pattern text, pixel planes, half-toning, GKS cell array function and the use of these techniques for heraldic designs.

Compression Techniques.

> The second section discusses compression techniques and includes simple examples of run-length-encoding and quad trees, with an exercise on each.

You may also find the following references useful:-

Foley et al Introduction to Computer Graphics. Chapter 10 section 10.6.

Hearn & Baker. (second-year text) Computer Graphics. Chapter 10 section 10.16.