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Edge extraction by a class of second-order nonlinear filters

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1 Author(s)
Ramponi, G. ; University of Trieste, Dipartimento di Electtronica Elettrotecnica Informatica, Trieste, Italy

The application of a class of nonlinear 2-D digital filters, based on the discrete Volterra series, as edge detectors is considered. Independence on edge orientation is achieved by the use of symmetry conditions on the coefficients. Two examples are presented.

Published in:

Electronics Letters  (Volume:22 ,  Issue: 9 )