6 Image Enhancement
6.1 Introduction and Overview
Image enhancement techniques are employed to emphasize, sharpen and/or smooth image features for display and analysis. Image enhancement is the process of applying these techniques to facilitate the development of a solution to an imaging problem. Consequently, the enhancement methods are application specific and are often developed empirically. Figure 6.1-1 illustrates the importance of the application by the feedback loop from the output image back to the start of the enhancement process and models the experimental nature of the development. To determine the success of an enhancement technique, subjective fidelity metrics are used. The range of applications includes ...
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