ABSTRACT

This chapter examines the field of digital image processing and to data mining. Digital image processing is a product of the space age. Its origin can be traced to National Aeronautics and Space Administration and the Jet Propulsion Laboratory (JPL). In the 1960s, JPL discovered that computer manipulations could be used to correct and enhance imagery obtained by spacecraft. Most books on digital image processing devote considerable space to the principles and technologies associated with image acquisition, compression, and display. The most useful operations of digital image processing are those that relate to image enhancement. In the context of digital image processing, a histogram is a graphic plot of pixel values within an image. The fundamental pixel point manipulation consists of applying a mapping function to an input data set, in order to produce an output data set. Pixel group operations take into consideration the pixel values in an area adjacent to the point under consideration.