Chapter   | 27 |

Spatial image processing

Elizabeth Allen

All images © Elizabeth Allen unless indicated.

INTRODUCTION

One of the most powerful motivations for the processing of digital images is image enhancement, either to improve their visual appearance and make them more pleasing to the human observer, or to improve the results obtained if the images are to be further analysed in computer vision applications. Enhancements typically involve: the reduction of unwanted elements, such as noise, introduced at the point of capture or by the imaging system; the correction of distortions, introduced by a poor choice of camera angle, less than optimum imaging conditions, or by the imaging optics; the modification of tone and colour reproduction; ...

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