Video Enhancement Techniques
Image enhancement transforms an existing picture into a new picture that is suitable for a specific application. Enhancement is often used to make objects stand out from their background and become more detectable, as Fig. 13-1 illustrates. The object of enhancement is to increase the signal and decrease the noise. In many cases, the enhanced image is the desired end: the experimenter is seeking a “clean” picture to present to an intended audience. In other cases, the enhanced image is used for counting, measuring, or tracing the objects represented: the experimenter creates a simplified representation that eliminates the need for subjective judgments during analysis. Such simplified representations can facilitate analysis by inexperienced human observers or by computer.
KeywordsGray Scale Video Signal Video Input Frame Buffer Ocular Dominance Column
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