Chapter 14 Image Processing and Analysis
Bryan Brown · 2017
Many of the medical images which are currently produced are digital in nature. In some cases, such as magnetic resonance imaging and computed tomography, the production of the images is intrinsically digital, as they are the result of computer processing of collected data. This chapter describes the appearance of certain features in the image, such as the edges of structures. Image processing allows to do these things. For reasons of convenience image processing can be divided into image smoothing, image restoration and image enhancement, although all of these activities use basically similar techniques. The chapter addresses the basic physics of a subject rather than the immediate practical problems of an application. Images are stored usually as one image element per computer memory location. The intensity measured is usually converted to an integer before storage if it is not already in integer form.