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The use of electron image manipulation and charge-image storage to perform the equivalent of incoherent optical image transformation is described. The technique permits mechanizing negative as well as positive optical aperture functions, and provides the light amplification usually associated with photographic recording. Nonlinear or decision operations on images appear attractive for some types of data processing, and are illustrated by means of examples.
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Hawkins et al. (1967) studied this question.
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