Basic machine vision techniques

Abstract

The purpose of this chapter is to outline some of the basic techniques used in the development of industrial machine vision systems. These are discussed in sufficient detail to allow an understanding of the key ideas outlined elsewhere in this book. In the following discussion we will frequently indicate the equivalent PIP operators for the vision techniques described. PIP commands appear in square brackets. In certain cases, sequences of PIP commands are needed to perform an operation and these are similarly listed.

Image — An optical appearance or counterpart of an object, such as is produced by rays of light either reflected as from a mirror, refracted as through a lens, or falling on a surface after passing through a small aperture. Oxford English Dictionary