Class of GOS (generalized order-statistic) filters, similar to the median, that provide edge enhancement

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Abstract
We present a class of nonlinear (generalized) robust order statistical filters. The entire class of filters is robust in that all filters in the class demonstrate the same impulse rejection properties as the median. Each filter in the class of filters is an optimal edge enhancing filter in that 'nonperfect' edges converge to 'perfect' edges.

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